1.   A _______ is used to compare two sets of data.
    A. stem B. back-to-back stem-and-leaf plot
    C. leaf D. stem-and-leaf plot
    Hint

  2.   What is the lower quartile of the set of data?
11 21 30 29 7 26
18 12 3 10 12 15
    A. 23.5 B. 12
    C. 10.5 D. 13.5
    Hint

  3.   Determine the interquartile range for the set of data.
   
    A. 8.5 B. 1.5
    C. 9 D. 10
    Hint

  4.   If you choose 1 scoop of ice cream from 12 flavors and any 1 topping from a choice of 8, how many different ice-cream sundaes can you make?
    A. 192 B. 96
    C. 20 D. 58
    Hint

  5.   Four coins are tossed. What is the probability of tossing two heads and two tails in any order?
    A. B.
    C. D.
    Hint

  6.   How many ways can 5 CDs be selected from a stack of 12 different CDs?
    A. 95,040 B. 1440
    C. 792 D. 17,280
    Hint

  7.   The spinner below is spun. What are the odds against it landing on green?
   
    A. 1:3 B. 2:3
    C. 1:2 D. 2:1
    Hint

  8.   There are 5 pennies, 7 nickels, and 9 dimes in a change purse. Suppose 2 coins are selected at random. Find the probability of selecting 2 pennies if the first coin is replaced before the second coin is chosen.
    A. B.
    C. D.
    Hint

  9.   The stem-and-leaf plot lists the heights of 37 children. In which interval do most of the heights occur?
   
    A. 130-139 B. 110-119
    C. 120-129 D. 140-149
    Hint

  10.   The box-and-whisker plot represents the test scores of 25 students. What is the upper quartile of the data?
   
    A. 79 B. 65
    C. 88.5 D. 100
    Hint

  11.   The box-and-whisker plot represents the test scores of 25 students. What is the upper extreme of the data?
   
    A. 88.5 B. 100
    C. 55 D. 105
    Hint

  12.   According to the histogram, how many people were born in December?
   
    A. 60 B. 40
    C. 30 D. 20
    Hint

  13.   According to the histogram, which monthly amount of births occurred most often?
   
    A. 20 B. 50
    C. 60 D. 30
    Hint

  14.   Which sentence is a true statement about the data in the graph?
   
    A. Wednesday's income was a 13% decrease from Tuesday's income. B. Tuesday's income was twice Monday's income.
    C. Friday's income was 20% greater than Monday's income. D. Friday's income was 50% below Thursday's income.
    Hint

  15.   Choose the correct statement.
   
    A. Tuesday's income was higher then Monday's income and Friday's income combined. B. Tuesday's income was 27% higher than Thursday's income.
    C. Tuesday's income was 30% higher than Friday's income. D. Tuesday's income was 0.75 times Monday's income.
    Hint

  16.   How many ways can a two-color uniform be chosen from red, white, blue, green, and black?
    A. 20 B. 120
    C. 25 D. 10
    Hint

  17.   If an experiment provided positive results on 15 out of 20 trials, what are the odds that the same experiment will provide a positive result on the next trial?
    A. 3:1 B. 4:3
    C. 1:3 D. 3:4
    Hint

  18.   When rolling a pair of number cubes, what is the probability of rolling (1, 1) two times in a row?
    A. B.
    C. D.
    Hint



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