Probability & Statistics Review

Two fair coins are flipped at the same time. What is the probability that both display heads?

• 1/8

• 1/4

• 1/3

• 1/2

Tags

CCSS.7.SP.C.7B

What is the probability that a randomly selected person is female given the person is left handed?

• 11/200

• 11/100

• 11/20

• 11/24

Tags

CCSS.HSS.CP.A.4

For two mutually exclusive events, A and B, P(A) = 2/10 and P(B) = 3/10. What is the probability that either event A or event B occurs?

• 0.8

• 0.7

• 0.6

• 0.5

Tags

CCSS.HSS.CP.B.7

Which situation best decribes conditional probability?

• finding the probability of an event occurring two or more times

• finding the probability of an event occurring only once

• finding the probability of two independent events occuring at the same time

• finding the probability of an event occurring given another event had already occurred

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.A.5

Which of these cannot be a probability?

• -0.025

• 0.5

• 1.000

• 0

Tags

CCSS.7.SP.C.5

Which of these numbers cannot be a probability?

• 0.6

• 1.0011

• 1

• 20%

Tags

CCSS.7.SP.C.5

A standard six-sided dice is rolled. Find the probability that an odd number is obtained. Express your answer in decimal form.

• 0.333

• 0.5

• 0.667

• 1.0

Tags

CCSS.7.SP.C.7B

A die is rolled then a letter in the word STATISTICS is randomly selected. What is the probability of at least a four, then the letter I?

• 1/10

• 3/20

• 1/5

• 1/4

A university determined the number of students pursuing different degrees, by gender. Some of the results are shown. What is the probability that a male student chosen at random is pursing an undergraduate degree?

• 0.25

• 0.33

• 0.51

• 0.66

Tags

CCSS.HSS.CP.A.4

Two events, A and B, are independent. Which statement represents the probability of A and B both occurring?

• P(A) * P(B)

• P(A) + P(B)

• P(A) - P(B)

• P(A) / P(B)

Tags

CCSS.HSS.CP.A.2

CCSS.HSS.CP.A.4