AnswersFL-1205040-MJ Grade 7 Mathematics A-CRUnit Test

Unit Test — Unit test Answers

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Tyler believes that an 8-sided die can be used to predict whether customers at his store will use a coupon when making their purchases, with a roll of 1 indicating a coupon and all other outcomes indicating no coupon. Today, 4 of the first 48 customers in the store used a coupon. How does the experimental probability of a customer using a coupon compare to the theoretical probability of Tyler’s die?

A
The experimental probability is greater than the theoretical probability by more than 2%.
B
The experimental probability is less than the theoretical probability by more than 2%.
C
The experimental probability is greater than the theoretical probability, but within 2%.
D
The experimental probability is less than the theoretical probability, but within 2%.
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A drawer of loose socks contains 2 red socks, 2 green socks, and 6 white socks. Which best describes how to determine the probability of pulling out a white sock, not replacing it, and pulling out another white sock?

A
The probability that the first sock is white is and that the second sock is white is , so the probability of choosing a pair of white socks is .
Option A
B
The probability that the first sock is white is and that the second sock is white is , so the probability of choosing a pair of white socks is .
Option B
C
The probability that the first sock is white is and that the second sock is white is , so the probability of choosing a pair of white socks is .
Option C
D
The probability that the first sock is white is and that the second sock is white is , so the probability of choosing a pair of white socks is .
Option D
23

What is the probability of the spinner landing on an odd number?

Question illustration
A
One-fourth
Option A
B
One-third
Option B
C
One-half
Option C
D
Three-fourths
Option D
24

Jamie made the tree diagram below to show the different choices he has for ordering a pizza for lunch.According to the tree diagram, which best describes how many choices Jamie has for his pizza?

Question illustration
A
three choices for size, two choices for crust, and two choices for topping
B
three choices for size, two choices for crust, and one choice for topping
C
two choices for size, two choices for crust, and one choice for topping
D
two choices for size, two choices for crust, and two choices for topping
25

A bag contains 5 red marbles, 3 green marbles, 2 purple marbles, 2 orange marbles, and 1 blue marble.Which color marble is less likely to be picked than purple?

Question illustration
A
blue
B
orange
C
green
D
red

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