1.   Use the data presented below. The highlighted values are called ________
   
    A. stems. B. leaves.
    C. plots. D. backs.
    Hint

  2.   What are the stems that would be used in a stem-and-leaf for the data.
114 101 107 120 93 108 119
127 93 99 114 100 94 125
116 99 101 127 114 110 103
    A. 9, 10, 11, 12 B. 0, 1
    C. 8, 9, 10, 11 D. 0, 1, 3, 4, 5, 6, 7, 8, 9
    Hint

  3.   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. 58
    C. 96 D. 20
    Hint

  4.   A vase contains 3 red flowers, 3 violet flowers, 6 pink flowers, and 8 yellow flowers. If one flower is chosen at random, what are the odds that it is not red or yellow?
    A. 17:3 B. 3:2
    C. 11:9 D. 9:11
    Hint

  5.   Using a standard deck of 52 playing cards, one card is randomly picked. What are the odds that the card is a diamond or a 5?
    A. 4:9 B. 4:13
    C. 9:13 D. 9:4
    Hint

  6.   Two number cubes are rolled twice. What is the probability of rolling a sum of at least 6 then rolling doubles?
    A. B.
    C. D.
    Hint

  7.   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

  8.   Find the interquartile range of
{60, 23, 69, 25, 75, 66, 31, 48, 78, 60}.
    A. 38 B. 31
    C. 60 D. 69
    Hint

  9.   Find the interquartile range of
{15, 16, 17, 5, 2, 20, 18, 20, 4, 11, 19, 11, 13}.
    A. 18 B. 10.5
    C. 18.5 D. 15
    Hint

  10.   The box-and-whisker plot represents the test scores of 25 students. What percent of the scores were between 88.5 and 65?
   
    A. 100% B. 75%
    C. 50% D. 25%
    Hint

  11.   The box-and-whisker plot represents the test scores of 25 students. What percent of the scores were above 50?
   
    A. 75% B. 25%
    C. 100% D. 50%
    Hint

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

  13.   According to the histogram, how many people were born in months before April?
   
    A. 360 B. 140
    C. 90 D. 50
    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. Friday's income was 50% below Thursday's income.
    C. Tuesday's income was twice Monday's income. D. Friday's income was 20% greater than Monday's income.
    Hint

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

  16.   If three coins are tossed, what is the probability of tossing two heads and one tail?
    A. B.
    C. D.
    Hint

  17.   Find the value of 7!.
    A. 120 B. 5,040
    C. 720 D. 28
    Hint

  18.   How many different ways can four CDs be chosen from a case of 10 CDs?
    A. 120,960 B. 3,628,800
    C. 5,040 D. 210
    Hint



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