Probability Review

How many outfits are possible with 5 pairs of jeans, 8 t-shirts, and 2 pairs of shoes?

• 15

• 40

• 80

• 10

A restaurant offers four sizes of pizza, two types of crust, and eight toppings. How many possible combinations of pizza with one topping are there?

• 16

• 8

• 64

• 512

Grant has five pairs of pants, nine shirts, and six ties. How many different outfits can he make consisting of one pair of pants, one shirt, and one tie?

• 45
• 270
• 30
• 54

If 1 out of every 3 people are left handed, how many people out of 600 would you predict to be left handed?

• 1/3 
• 200
• 400

Tags

CCSS.7.RP.A.3

The experimental probability that it will rain on any given day is 15%.  Out of 365 days, about how many days can you predict it will rain?

• 50 days
• 55 days
• 53 days
• 57 days

Tags

CCSS.7.SP.C.6

What is the probability of drawing number divisible by 3, then drawing a 1? (no replacement--dependent event)

• 4/8 = 1/2

• 2/7

• 4/9

• 8/56 = 1/7

What is the probability of drawing an even number, then drawing a 1? (no replacement--dependent event)

• 5/8

• 2/7

• 10/56 = 5/28

• 2/56 = 1/28

A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement.P(both marbles are purple)

• 2/9
• 1/3
• 1/2
• 1/4

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

• 1/36
• 2/39
• 5/41
• 6/43

A bag has 2 yellow marbles and 8 brown marbles. Nancy takes out two marbles without replacing the marbles. What is the probability that they will both be yellow?

• 2/19

• 1/10

• 1/25

• 1/45

Tags

CCSS.HSS.CP.B.9