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7th Grade Probability

Total questions: 13

Worksheet time: 13mins

Name
Class
Date
1.

You spin the spinner once. What is P(green)? Write your answer as a percentage.

(a)  

2.

You roll a 6-sided die. What is P(2 or greater than 3)? Write your answer as a percentage rounded to the nearest tenth.

(a)  

3.

You spin the spinner once. What is P(green or blue)?

(a)  

4.

A T-shirt stand on the boardwalk recently sold 6 purple shirts and 9 shirts in other colors. What is the experimental probability that the next shirt sold will be purple? Write your answer as a fraction or whole number.

(a)  

5.

Abdul flips a weighted coin 64 times and gets 16 tails. Based on experimental probability, how many of the next 40 flips should Abdul expect to come up tails?

(a)  

6.

Hugo volunteers at a food pantry. He sorts canned food donations by type and shelves them. The table shows the results so far today.

Type of canned food | Number of cans

vegetables | 18

meat/fish | 11

soup | 20

fruit | 14

beans | 17

Based on the data, estimate how many of the next 100 cans Hugo shelves will be soup. If necessary, round your answer to the nearest whole number.

(a)  

7.

If you spin the spinner 27 times, what is the best prediction possible for the number of times it will land on pink or blue?

(a)  

8.

You pick a card from {10,Jack,Queen,King}, roll a 6-sided die, and flip a fair coin. How many outcomes are possible?

(a)  

9.

You pick one card from set {1,2,3}, pick a card from set {7,8}, and spin a spinner with the numbers {3,4,5,6,7}, and find the sum. How many unique sums are possible?

(a)  

10.

You roll two 6-sided dice. What is the probability of rolling an odd number on the first die and an even number on the second die? Write your answer as a fraction or a whole number.

(a)  

11.

You pick a card at random from the set {4,5,6,7}. Without putting the first card back, you pick a second card at random. What is the probability of picking a 7 and then picking a 7? Write your answer as a percentage.

(a)  

12.

Hazel is knitting a sweater. For the yarn, she has to choose from 4 colors and 8 weights. Hazel knows 2 different sweater patterns. Finally, she has 3 different zippers to choose from. How many different sweaters can Hazel knit?

(a)  

13.

On the Monte Carlo board, what is the probability of landing outside of the blue circle? Write your answer to the nearest tenth of a percent.

(a)