VCU STAT 210  Test 2 Practice Test #3 (4 pages)
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Test 2 Practice Test #3
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 4
 School:
 Virginia Commonwealth University
 Course:
 Stat 210  Basic Practice of Statistics
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Test 2 Practice Test 3 1 Identify which of the following choices is the appropriate description of the statistic listed It is possible to use a choice more than once A B C D A measure of center that is not resistant to outliers A measure of center that is resistant to outliers A measure of spread that is not resistant to outliers A measure of spread that is resistant to outliers Interquartile range Mean Median Range Standard deviation 2 Which of the following is a graphical procedure for displaying quantitative data A Stem and leaf plot B Histogram C Box plot D All of A B and C E None of A B and C 3 Anita and Joel are each given the same set of data and are asked to construct a histogram They agree to use exactly the same class intervals Anita constructs a frequency histogram and Joel constructs a relative frequency histogram TRUE or FALSE Anita s frequency histogram and Joel s relative frequency histogram will look the same except for the labeling of the vertical axis Often people invite their family friends colleagues and other associates to their birthday parties but ask that they not purchase a gift In most cases these people purchase a card but not a gift while close family members will still purchase a gift The data below reflect the amount of money spent on birthday cards and gifts for a random sample of 100 people attending birthday parties Use this boxplot to answer questions 4 through 6 x x 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 Money Spent on Cards and Gifts 4 Which of the following best describes the center of this distribution A The distribution has outliers at 24 and 40 B The range of the data is 40 0 40 C The mean of the data is 4 D The median of the data is 4 E The median of the data is 18 5 Which of the following best describes the spread of this distribution A The interquartile range of the data is 10 2 8 B The median of the data is 4 C The range of the data is 18 0 18 D The range of the data is 10 2 8 E The interquartile range
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