Exam 2: Frequency Distributions

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A researcher surveys a sample of n = 200 college students and asks each person to identify his or her favorite movie from the past year.If the results are presented in a frequency distribution graph,the researcher should use a bar graph.​

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For the distribution in the following table,the percentile rank for X = 19.5 is 20%.? \% 25-29 100\% 20-24 80\% 15-19 20\%

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What is the shape of the distribution for the following set of data?​Scores: 1,2,3,3,4,4,4 5,5,5,5,6

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The normal distribution is an example of a symmetrical distribution.

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For the distribution in the following table,what is the percentile rank for X = 7?? X c\% 9 100\% 8 80\% 7 50\% 6 25\%

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There is a total of n = 5 scores in the distribution shown in the following table.? 5 2 4 8 3 5 2 3 1 2

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The classrooms in the Psychology department are numbered from 100 to 108.A professor records the number of classes held in each room during the fall semester.If these values are presented in a frequency distribution graph,what kind of graph would be appropriate?​

(Multiple Choice)
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A sample of n = 15 scores ranges from a high of X = 11 to a low of X = 3.If these scores are placed in a frequency distribution table,how many X values will be listed in the first column of that table?​

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If the following continuous distribution was shown in a histogram,the bar above the 15-19 interval would reach from ____ to ____.? 20-25 2 15-19 5 10-14 4 5-9 1

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For the distribution in the following table,what is the percentile rank for X = 24.5?? X c\% 30-34 100\% 25-29 90\% 20-24 60\% 15-19 20\%

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If a set of scores covers a range of 80 points,the grouped frequency table should use an interval width of 8 points.

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In a frequency distribution graph,frequencies are presented on the ____ and the scores (categories)are listed on the ____.​

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For the following distribution of quiz scores,How many individuals had a score of X = 2?? 5 6 4 5 3 5 2 3 1 2

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For the distribution in the following table,what is the percentile rank for X = 32?? X c\% 30-34 100\% 25-29 90\% 20-24 60\% 15-19 20\%

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