the measure of Which of the following statements about histograms is/are true? 2. change the exposed silver bromide crystals to black metallic silver d. All of these choices are true. A. Oc. Direct link to jaiythor5263's post can histograms be used wi, Posted 4 years ago. A histogram generally has no gaps between rectangles, because it is a graphical display of a numerical variable and the horizontal axis follows a number scale. A bar chart shows categories, not numbers, with bars indicating the amount of each category. Od. Minimum, First quartile (Q1), Median,Third quartile, A: Measure of central tendency measures the central or average value of a dataset. The reasons the above options are correct are as follows: (15*8 + 25*2 + 35*1 + 45*2 + 55*8)/(8 + 2 + 1 + 2 + 8) = 35, (15*1 + 25*2 + 35*8 + 45*2 + 55*1)/(1 + 2 + 8 + 2 + 1) = 35, The mean of the two data set appear to be the same. The number of class intervals in a frequency distribution must be the same as the number of observations. Thank you for the question. false? A. compensating filter Class Direct link to Jordan214's post what is the difference be, Posted 3 years ago. Mean or Arithmetic Mean, A: Introduction: Use your browser's back button to return to your test results. A histogr, Posted 2 months ago. Which of the following is the correct order of radiographic film processing? b. Which of the following statements must be true about the data sets A and B displayed in the histograms above? View solution. Which of the following is true? A histogram is a chart that plots the distribution of a numeric variable's values as a series of bars. D. 100 mA, 0.12 second, spatial resolution/detail can be improved by decreasing All Symmetric histograms have single peak. 46.900 D. 1, 2, and 3, Hemo-Endocrine Study Guide - Makenna, Kelsy,, Charles E. Leiserson, Clifford Stein, Ronald L. Rivest, Thomas H. Cormen, Information Technology Project Management: Providing Measurable Organizational Value, Computer Organization and Design MIPS Edition: The Hardware/Software Interface, Starting Out with C++ from Control Structures to Objects, Godfrey Muganda, Judy Walters, Tony Gaddis. 66 All normal curves are bell-shaped and symmetric. 79 A. A histogram is used to display qualitative data. The mean of set A looks to be greater than the mean of set B. C. The mean of set B looks to be greater than the mean of set A. D. Both sets have roughly the same variance. while y will have a frequency. C. 1 and 3 only quanti. Which of the following is not an approach to assigning probabilities? He works 9 hours each day. 93 Academic Club III. and you've noticed that there is variability in the number of cherries on each pie that you sell. A: To find which statistics is not shown on a boxplot. A contingency table may also be called a cross classification table Both sets are roughly symmetric around 150 and so both should have means about 150. g(x)=x2+3x+2g(x)=x^{2}+3|x+2|g(x)=x2+3x+2. A. Mrs. Hamilton worked for a real estate agency. Use your browser's back button to return to your test results. A. false? As such, it does not represent categorical data. 2. it increases contrast The number of bacteria P can be modeled by P=500(1+4t50+t2)P=500\left(1+\frac{4 t}{50+t^{2}}\right)P=500(1+50+t24t) where t is the time (in hours). So there are 20 pies in this store. Histogram is an equivalent graphical representation of the frequency distribution. All Symmetric histograms have single peak. Multiple Choice The heights of the bars represent relative class frequencies. Experts are tested by Chegg as specialists in their subject area. 11 80 For example, if a teacher's histogram of exam scores shows a skew, or a pronounced lean, to the left, it might indicate that most students struggled with the test. Which of the following is the best type of chart for illustrating the GDP of Australia from 1960 to 2010? Histograms of categorical variables can pinpoint clusters and gaps. B. Stemplots are equally useful for small and very large data sets. 8+4=12,plus 3 is 15 which is five less than 20. C. 600 mA, 0.02 second ____ 5. 1 only B. Which of the following statements about histograms is true? In histograms, frequencies can be determined from relative heights I and II Which of the following are true statements? Data Set A has a smaller spread than Data Set B. b. d. All of these choices are true. Learn how to read and interpret histograms, which summarize data by sorting it into buckets. 1 and 2 only C. 2 and 3 only D. 1, 2, and 3 C All of these choices are true. B) Histograms are used to display discrete numerical data. Consider the following statements in respect of histogram: 1. c. Each trial results in two or more outcomes. If you want any, A: Note: The true options about the histograms are: (1) Data are organized in equal intervals. A: Check for outliers. The proportion of observations that fall into that class. (3) Bars are always touching. A histogram shows bars representing numerical values by range of value. Which of the following statements about histograms is true? All symmetric bell-shaped curves are normal. SID B. Stemplots are equally useful for small and very large data sets. As you have posted multiple sub-parts, we have helped, A: The following information has been given: Frequency can histograms be used with any set of numbers/data ? Which statement is true? Which of the following pathologic conditions probably require a decrease in exposure factors? Suppose P(A) = 0.25. A sample of. 2. A: Given: The stem and leaf diagram is provided as: The heights of the bars correspond to the frequency values, and the bars are drawn adjacent to each other (without gaps). 3. density E. Off campus A chart in which vertical bars represent data in different categories. Which of the following statements is true about a distribution that appears to have a gap when displayed as a histogram? $175,000. Which of the following is a true statement? Group 2 Calculate the total flux of v(x,y,z)=\mathrm{v}(x, y, z)=v(x,y,z)= 2xyi+y2j+3yzk2 x y \mathbf{i}+y^2 \mathbf{j}+3 y z \mathbf{k}2xyi+y2j+3yzk out of the given solid. Which of the following statements about histograms is true? D The relative frequency of a class in a histogram is computed by a. D. Stemplots may or may not show individual values. On campus Ob. A histogram represents a continuous variable distribution. Its shape resembles a histogram turned on its side. c. The classes in a histogram cover the complete range of observations. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. 12 If the right-hand-side tail of the graph of a data set is longer than its. when the graph shows that the number of pies and the number of cherries, 0-29, 30-59 does 30-59 means that that eight pies have 30-59, or it has 19, because 59-30=19. 2 only Compare the two histograms below. Which of the following statements about pie charts is false? Which of the following describes an ogive? So the x-axis will have a label such as color, gender, sports, team, etc. The weighted average of the possible values that a random variable X can assume, where the weights are the probabilities of occurrence of those values, is referred to as the: The lottery commission has designed a new instant lottery game. B. D. Compare the spread of the two histograms below. 2 students received a score of 50 to 59; 5 students received a score of 60 to 69; 8 students received a score of 70 to 79; 5 students received a score of 80 to 89; 2 students received a score of 90 to 100. 2. patient dose I only Il only 111 only 1 and 11 None of the above gives the complete set of true responses. So the first question is: based on just this information can you figure out the total number of pies in your store? Let's see. Then use Newton's method to find the root correct to six decimal places. Direct link to Saivishnu Tulugu's post Great question! Which of the following graphical display is can be used to describe relationship between two numerical (quantitative) variables? Three of the following statements are true about the statistics from the two data sets. c- The classes in a histogram cover the complete range of Yes, and it really depends on the data you want to present and how you want to present it. Given this sample space, which of the following is a simple event? Histograms of categorical variables can pinpoint clusters and gaps. C) The heights of the bars represent class frequencies. The given chart, A: General guidance Given information: The histograms are similar to bar graphs but histograms groups numbers into ranges. Which of the following best describes a bar chart? The histogram above shows a frequency distribution for time to . You can recreate the original data set from it. 8) Which of the following statements about histograms are true? E. The standard deviation of set B is greater than 5. 79, A: Here use basic definition of level of measurement, A: Given information, A histogram illustrates pixel value distribution 2. there is a default histogram for each/different body parts 3. a histogram is representative of the image grayscale A. a. Try It Follow the steps you used to graph a box-and-whisker plot for the data values shown. And you are going to do it for every pie. A) A histogram has gaps between the bars. B. Let's say you have a cherry pie store. So what you're curious about is what is the distribution, how many of different types of pies do you have? Which of the following statements about histograms is true? A negatively skewed histogram is one with a long tail extending to the left. c. It provides an organized way to depict interval data. a. You just want to get a general sense of things. D. What does the length of each line of a stem-and-leaf display represent? The intervals of a histogram do not overlap. a- A histogram is a summary of interval data. The empirical rule applies only to set A. 1 only Which of the following statements about histograms is true? Statistics and Probability questions and answers. O Displaying outliers is less problematic . Which of the following are true statements? c. A bar chart may be used as a graphical display of a contingency table. Histograms are used to represent quantitative data. Direct link to Vladimir Ermakov's post Yes, and it really depend, Posted 5 years ago. For bell-shaped data, about 95% of the values fall within two standard deviations of the mean and 99.7% fall within three. The histograms are similar to bar graphs but histograms groups numbers into ranges. A histogram is said to be symmetric if, when we draw a vertical line down the center of the histogram, the two sides are identical in shape and size. 72 A histogram is said to be symmetric if, when we draw a vertical line down the center of the histogram, the two sides are identical in shape and size. Expert Answer. The bars of a histogram should be equal width to accurately display the data. A histogram is a summary of interval data. If you're seeing this message, it means we're having trouble loading external resources on our website. 2.7-2.9 D. 1, 2, and 3, In digital imaging, mAs selection has an effect on d. All of these choices are true. Direct link to nicholask7297's post So, the height of the bar, Posted 2 years ago. A bar chart shows categories, not numbers, with bars indicating the amount of each category. Stem Statistics and Probability questions and answers. 1 and 2 only Expert Answer 100% (7 ratings) Your answer: B. how many pies have at least 90 at most 119? 5 a. A population of bacteria is introduced into a culture. Histograms can be used with any numbers, it just matters how you label them differently, what is the difference between a histogram and a bar graph. 1. it produces fog A: Need to identify which graphical tool is suitable for the data of causes of defects. If the radiographer is unable to achieve a short OID because of the structure of the body part or patient condition, which of the following adjustments can be made to minimize magnification distortion? O Unlike other graphs, histogram axes do not need to be labeled. The statements that must be true about the data sets A and B displayed in the histogram are; The mean of dataset A is equal to the mean of dataset B, The median of data set A is equal to the median value of dataset B, The range of dataset A is equal to the range. A histogram shows bars representing numerical values by range of value. How much So, to do that, you set up a histogram. A histogram is a summary of interval data. (B) (D) (E) All symmetric histograms have single peaks. 5 To log in and use all the features of Khan Academy, please enable JavaScript in your browser. shares outstanding? The distribution has a region between two data values where no data were observed. how many pies have at least 60 at most 89 cherries? Histogram example: student's ages, with a bar showing the number of students in each year. 4, A: (Since it is not mentioned which question so as per our protocol we shall only answer the first, A: From box and whiskers diagram Direct link to Vasu Dalal's post Can histograms be made si, Posted 5 years ago. (C) Stemplots are not used for categorical data sets, are too unwieldy to be used for very large data sets, and show every individual value. B) Histograms are used to display discrete numerical data. O Unlike other graphs, histogram axes do not need to be labeled. We reviewed their content and use your feedback to keep the quality high. a- A histogram is a summary of interval data. Hey there! 71 Select the data and. what if you want to know the number of pies with more than 60 cherries the number of pies with more than 60 number of pies with I'll say this 60 or more 60 or more cherries so let's think about it. a. A. I. C. There are no outliers. Direct link to steven.bell's post I don't get what he is do, Posted 5 years ago. What values are displayed on a cumulative relative frequency distribution? What is two thousand four hundred divided by fifty nine, 1. E) Histograms are used to display qualitative, categorical data. b- A histogram is made of a series of intervals, called classes. C. 2 and 3 only She sold a house for A: Given data is the age of a group of individuals enrolled in a study looking at the relationship, A: Stem and leaf are the diagrammatic representation of the data. 16, A: Since you have asked multiple questions, we will solve the first question for you. O I only O Il only O III only O I and III only 8. The five numbers used to create a box-and-whisker plot are: Min: 10 10 Q1 Q 1: 15 15 Med: 95 95 Q3 Q 3: 490 490 Max: 790 790 The following graph shows the box-and-whisker plot. 9 Direct link to kayce's post i still don't under stand, Posted a year ago. Thus, the standard deviation for set B must be greater than 5. If 19 percent of the whistles were rejected. B. Which of the following best describes a component bar chart? 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D. 1, 2, and 3, Which of the following groups of exposure factors would be most appropriate to control involuntary motion? Your answer: O Two students working with the same set of data may come up with histograms that look different. The standard deviations are about the same. $1.000 A) A histogram has gaps between the bars. So using this histogram we can answer really interest question, which would say how many more pies do we have that have 60-89 cherries than 120 to 149 cherries? STAT 351 Ch-1 (MCQ, T/F, Fill in the blanks,, IIBA-ECBA Study Guide "Basic Knowledge" - Cha, IIBA-ECBA Study Guide "Understands" - Chapter, IIBA-ECBA Study Guide - "Follow Rules" - Chap, The Practice of Statistics for the AP Exam, Daniel S. Yates, Daren S. Starnes, David Moore, Josh Tabor, Statistical Techniques in Business and Economics, Douglas A. Lind, Samuel A. Wathen, William G. Marchal, Daniel S. Yates, Daren S. Starnes, David Moore, Introduction to Statistics and Data Analysis. 3. harden the emulsion One of them is false. 11. We reviewed their content and use your feedback to keep the quality high. 1 only commissi Which of the statements given above is/are . The probability of complement of A is: An approach of assigning probabilities that assumes that all outcomes of the experiment are equally likely is referred to as the: If you roll a fair (unbiased) die 60 times, you should expect an odd number to appear: If a coin is tossed three times, and a statistician predicts that the probability of obtaining three heads in a row is 0.125, which of the following assumptions is irrelevant to his prediction? The empirical rule applies only to set A. OID Diagnostic x-rays are generally associated with, A screen-film image exhibiting insufficient density might be attributed to, Decreasing field size from 14 x 17 in to 8 x 10 in, with no other changes, will, Which of the following devices is used to overcome severe variation in patient anatomy or tissue density, providing more uniform receptor exposure? This pie has 1,2,3,4,5 6,7,8,9,10,keep counting Let's say it has 32 cherries. Bar chart example: student's favorite color, with a bar showing the various colors. [we can observe from the data there are no, A: Note: Fraternity d. All of these choices are true. classes. Statistics and Probability. D. added filtration, What are the effects of scattered radiation on a radiographic image? I. a. The class with the largest number of observations. 26 B. so now we have construct it; Let's see if we can interpret it based on the information given in the histogram. First week only $4.99! Which of the following describes the shape of the histogram below? Direct link to satyasarathi05's post what is the difference be, Posted 5 years ago. It is the average of given set of numbers. 86 If A and B are independent events, with P(A) = 0.50 and P(B) = 0.70, then the probability that A occurs or B occurs or both occur is: The collection of all possible outcomes of an experiment is called: Two events A and B are said to mutually exclusive if: If A and B are mutually exclusive events with P(A) = 0.80, then P(B): A useful graphical method of constructing the sample space for an experiment is: The expected number of heads in 90 tosses of an unbiased coin is: The expected value, E(X), of a binomial probability distribution is: Given that X is a binomial random variable, the binomial probability P(X x) is approximated by the area under a normal curve to the right of: The standard deviation of a binomial distribution for which n = 100 and p = .35 is: Which of the following best describes a discrete random variable? Direct link to Kblast79's post What Sal is doing is that, Posted 6 years ago. Which of the following may be determined from the height of the bar in a relative frequency histogram? C. Stemplots can show symmetry, gaps, clusters, and outliers. a. B. Histogram is suitable for continuous random variables, where the total frequency of an interval is evenly distributed over the interval. Hey, since there are multiple subparts posted, we will answer first three subparts. If P(A) = 0.60, P(B) = 0.58, and P(A B) = 0.70, then P(A B) is: If A and B are mutually exclusive events, with P(A) = 0.30 and P(B) = 0.40, then P(A B) is: If A and B are mutually exclusive events, with P(A) = 0.20 and P(B) = 0.30, then P(A B) is: If P(A) = 0.35, P(B) = 0.45 and P(A B) =0.20, then P(A | B) is: If A and B are independent events, with P(A) = 0.20 and P(B) =0.60, then P(A | B) is: When a fair die is rolled once, the sample space consists of the following six outcomes: 1, 2, 3, 4, 5, 6. classes. 3 only Stems should never be skipped overgaps are important to see. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. All content of site and practice tests copyright 2017 Max. A contingency table is used to describe two nominal variables. A graphical representation of cumulative relative frequencies. B. All normal curves are bell-shaped and symmetric. Which of the following statements about histograms is false? Question: Shapes of Distributions - Variation: The histograms below depict the frequencies from two data sets. and then you create buckets. Assume that 51,000 shares were originally issued and 4.100 w B. c. A histogram shows the relative frequencies of. Among 500 members, 8% of the sampled members have spent, A: The given grouped data is Which of the following is the most important and commonly used graphical presentation of numerical (quantitative) data? Concepts and reason Which of the following statements about histograms is true? ANSWER: However, in the histogram for set B, one sees that 95% of the data are not between 140 and 160, and 99.7% are not between 135 and 165. Which of the following statements are true? Estimate the number of whistles that did not pass. The proportion of STEM status of students who identify as, A: Box plot:Box plot is useful to compare the data graphically and it is most appropriate method to, A: Two sample z test: a- A histogram is a summary of interval data. 6 The cube: 0xa,0ya,0za0 \leq x \leq a, \quad 0 \leq y \leq a, \quad 0 \leq z \leq a0xa,0ya,0za. a. b. Which of the following are TRUE statements? Which of the following is a true statement? Which of the following statements about histograms is true? Players pay $1.00 to scratch a ticket, where the prize won, X, (measured in $) has the following discrete probability distribution : A table, formula, or graph that shows all possible countable values a random variable can assume, together with their associated probabilities, is called a: Which of the following is not a characteristic of a binomial experiment? A modal class in a histogram is the class that includes, The sum of the relative frequencies for all classes in a histogram always equals. So basically on a histogram, it's a way to graph ranges of data. Today your going to read about Mesoamrica and first read the passage and then answer. The shape of histogram A is the same as the shape of histogram B. On the other hand, a bar graph is used to represent categorical (qualitative) data. 3. patient/part motion a. Which of the following are TRUE statements? In histograms, relative areas correspond to relative frequencies. C. collimator 1. Direct link to kathyzhang0001's post when the graph shows that, Posted 2 years ago. Which of the following best describes this relationship? b- A histogram is made of a series of intervals, called A histogram is created by drawing rectangles whose bases correspond to the class intervals, and the area of each rectangle equals the number of observations in that class. Histograms of categorical variables can pinpoint clusters and gaps. O Displaying outliers is less problematic when using histograms than when using stemplots. The median values for dataset A and dataset B are both in the median range of 30 and 40, therefore; Another obvious information that can be seen and which must be true is the range; The range is the difference between the largest number and the smallest number; The range of the histogram of data set A = 60 - 10 = 50, The range of the histogram of data set B = 60 - 10 = 50, This site is using cookies under cookie policy . The bars are drawn adjacent to each other because the data is continuous. Question number 3 what kinds of tools do you think Mesoamrica civilizations created with the resources they had? O Displaying outliers is less problematic when using histograms than when using stemplots. Histograms may be skewed or symmetrical depending on the data. D. Stemplots may or may not show individual values. I. 31 C. 44 D. 59 E. 61. We can calculate C) The heights of the bars represent class frequencies. D. 1, 2, and 3, The function(s) of the developer in film processing is (are) to There are many, A: The normal distribution in the center is generally denser and basically less dense at the tails., A: Since you have asked multiple questions, we will solve the first question for you. If P(A) = 0.20, P(B) = 0.30 and P(A B) = 0.00, then A and B are: Which of the following is a requirement of the probabilities assigned to the outcomes Oi? E) Histograms are used to display qualitative, categorical data. Which of the following is true about a stem-and-leaf display? A: We want to tell you which one is the correct choice. I've seen some bar graphs with horizontal bars instead of vertical ones. A. All content of site and practice tests copyright 2017 Max. If you want any, A: GivenMarginoferror(E)=5confidencelevel(c)=95%Thesamplestandarddeviationfromthestudy, A: The rate of children living in California with grandparents as their primary caretakers. A contingency table lists the counts of each combination of the values of the two variables. Transcribed image text: Which of the following statements about histograms are true? Start your trial now! C. The distribution is approximately normal. The minimum test score is 17, and maximum test score is 26. Question number 2 why do you think maize was so important to these civilizations. A histogram is a bar graph in which the horizontal scale represents classes of data values and the vertical scale represents frequencies. 1 only A histogram is made of a series of intervals, called classes. 69 The PA chest image shown here exhibits which of the following qualities? F1+F2+F3++FN=FN+21. E. Stems may be skipped if there is no data value for a particular stem. Set A is much more spread out than set B, and so set A has the greater variance. (2) Bar must appear in numerical order. d- All of these choices are true. A random variable that can only assume a countable number of values. A: This data set shows how much miles per gallon does different cars gives. c. A positively skewed histogram is one with a long tail extending to the right. Can histograms be made sideways? Question: 8) Which of the following statements about histograms are true?