AP Probability Test

The outcome of one event does influence the outcome of the other event.

• mutually exclusive event

• probability

• dependent event

• simple probability

A letter of the alphabet is chosen at random, then a coin is flipped. What is the probability of choosing a letter from the word MATH then getting tails? 

• 4/26 + 1/2

• 4/26 x 1/2

• 4/25 x 1/2

• 4/25 + 1/2

What would be the probability of flipping 10 coins that all land on tails? 

• 10/1024

• 1/1024

• 1/1025

• 10/1024

A number cube numbered (1, 2, 3, 4, 5, 6)  is rolled and a spinner with 4 sections (A, B, C, D) is spun. P(1 and A)

• 1/24

• 1/12

• 1/6

• 2/24

What is the probability of rolling a dice and landing on a 4, and then rolling the dice again and landing on any even number?

• 1 ⁄ 6

• 1 ⁄ 8

• 1 ⁄ 2

• 1 ⁄ 12

A box contains all the letters of the word U N D E R S T A N D. What is the probability of selecting an 'N' first and a 'D' next, if the first letter is replaced?

• 3/50

• 1/25

• 1/10

• 2/5

You draw a marble from a bag that has 4 red, 2 blue, and 3 green, you also flip a fair coin. What is the probability you will draw a blue marble and flip a heads?

• 1/9

• 3/9

• 3/6

• 5/6

P(1 and A)

• 1/16

• 1/10

• 4/16

• 1/4

What is the probability that a randomly selected student plays sports given that they do not do community service?

A jar contains 4 white playing chips, 5 purple chips, and 1 black chip. Chips are selected randomly one at a time, and are not replaced. Find P(purple then black)