Probability and Statistics Pretest

What is the probability of picking a red marble from a bag containing 5 red marbles and 8 blue marbles?

• 5/13

• 8/13

• 3/8

• 1/2

What is the probability of picking a red marble from a bag containing 5 red marbles and 7 yellow marbles?

• 5/12

• 7/12

• 2/5

• 1/3

What is the probability of rolling a 6 on a fair six-sided die?

• 1/2

• 1/3

• 1/4

• 1/6

What is the probability that someone who likes Toyotas is female?

• .525

• .4627

• .6774

• .3143

In a deck of 52 playing cards, what is the probability of drawing a heart?

• 1/4

• 1/3

• 1/5

• 1/2

What is the median of the following data set: 3, 5, 7, 9, 11?

• 5

• 3

• 9

• 7

What is the mode of the following data set: 2, 4, 4, 6, 8?

• 6

• 2

• 4

• 8

What is the range of the following data set: 5, 10, 15, 20, 25?

• 5

• 20

• 15

• 10

What is the standard deviation of the following data set: 2, 4, 6, 8, 10?

• 2.8284

• 5.6569

• 3.1623

• 1.4142

What is the probability of selecting a red marble from a bag containing 3 red marbles and 7 blue marbles?

• 3/10

• 5/8

• 7/10

• 1/3