Probability 2020

On a display table at a department store there are:

• 3 blue t-shirts

• 8 white t-shirts

• 4 pink t-shirts

• 5 green t-shirts

If a customer randomly chooses 1 t-shirt, what is the probability that he will choose a white t-shirt?

• $\frac{2}{5}$

• $\frac{3}{20}$

• $\frac{1}{5}$

• $\frac{1}{4}$

Tags

CCSS.7.SP.C.7B

A gumball machine contains five colors of gumballs. 38 green, 42 purple, 13 red, 18 blue, and 9 white. If the machine dispenses gumballs at random, what is the probability that a selected gumball is not green?

• $\frac{19}{60}$

• $\frac{38}{120}$

• $\frac{41}{60}$

• $\frac{1}{10}$

Tags

CCSS.7.SP.C.7B

Jane has a quarter and a number cube. If she tosses the quarter once, and rolls the number cube once, what is the probability of she will get a heads-up quarter and an even number on the cube?

• $\frac{2}{3}$

• $\frac{1}{2}$

• $\frac{1}{4}$

• $\frac{1}{6}$

Tags

CCSS.HSS.CP.B.7

Lunch at Clayton’s Restaurant comes with a choice of 2 different types of soups, 3 different salads, and 3 different types of desserts. How many different lunch combinations are available at Clayton’s Restaurant?

• 26

• 8

• 18

• 6

A movie theater surveyed a random sample of guests to determine which of 2 movie snacks they prefer. The results of the survey are shown below.

• Popcorn is preferred by 28 movie guests

• Candy is preferred by 11 movie guests.

Based on the results of the survey, about how many of 130 guests at a movie can be expected to prefer candy?

• 37

• 93

• 28

• 39

Tags

CCSS.7.RP.A.3

A farm has 5 brown cows and 10 white cows. A fence is open and two cows escape. What is the probability that it will be a brown cow, then a white cow?

• 1/9
• 2/9
• 5/21
• 10/21

Tags

CCSS.HSS.CP.B.6

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.8

A store sells shirts that are either small, medium, or large. The colors are either red, blue, green, or white. What is the probability someone will select a large green shirt?

• 1/3
• 1/7
• 1/9
• 1/12

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

P(not A) = 
*Remember to simplify.*

• 6/8
• 3/4
• 2/8
• 1/4

Tags

CCSS.7.SP.C.5

In a cup are the numbers 1 - 20. Find the theoretical probability of 
picking a number divisible by 5. 

• 4/20
• 1/5
• 5/20
• 1/4

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

• .2855
• .6246
• .0922
• .3230

Tags

CCSS.HSS.CP.A.1

CCSS.HSS.CP.B.6