Log inSign up for FREE
Library

7th Grade Math: Unit 5

Last updated 9 months ago
14 questions
1

Unit 5 – Item 1
Jordan is on the high school basketball team. The team is one of the best in the state and the probability of winning their next basketball game is likely. Which percentage could represent the team’s probability of winning?

1

Unit 5 – Item 2
Marcus is creating a game where a number cube with faces numbered 1 to 6 will be rolled 12 times. In order to win, the player must roll an odd number. In theory, how many of the 12 rolls should result in an odd number?

Unit 5 – Item 3
Read the prompt below and use the table to answer the questions.

Janet is a sneakerhead and has a closet full of sneakers. When organizing her sneaker
collection recently she created the table below.

1

Part A
When selecting shoes at random, what is the probability Janet will pick a blue pair of sneakers?

1

Part B
On rainy days, Janet likes to wear black, red, or blue shoes. What is the probability of selecting a color Janet would not wear on a rainy day?

1

Unit 5 – Item 4
Emily determined the probability of rolling an even number on a standard six-sided number cube is 50%. She used that to estimate when she rolls the dice 40 times, the die will land on and even number 20 times. When Emily completed the experiment, the die landed on an even number 23 times. Explain a possible reason why Emily’s prediction and results do not match.

1

Unit 5 – Item 5
When flipping a coin 200 times, how many times would you expect to land the coin on tails?
Explain your answer.

Unit 5 – Item 6

1

Part A
Lara played a game using the spinner above. So far, she has landed on greens 3 times, orange 6 times, and blue 2 times. What is the likelihood of landing on orange in her next spin?

1

Part B
Lara is designing a new game. In her new game she wants to have a spinner with 5 parts which are unlikely. Draw a spinner that matches Lara’s parameters.

Unit 5 – Item 7
At Gaskill Middle School, the 7th grade students in Miss Gerald’s class did better on their final
exam than the students in Mr. Barker’s class. The students had the same instruction, notes,
amount of study time, and exam. Miss Gerald was curious if the students amount of sleep the students had the night before the test had any effect on the scores. She asked the students how much sleep they got the night before the exam and listed the data below.

  • Miss Gerald’s Class: 8, 8, 9, 6, 10, 9, 10, 10, 7, 7, 6, 9, 8, 9,10, 10, 8
  • Mr. Barker’s Class: 10, 6, 7, 6, 5, 7, 7, 7, 9, 7, 8, 8, 8, 7, 6, 6, 6, 6
1

Part A
Use the data to complete the table.

1

Part B
Generate two dot plots to displace the data. One for Miss Gerald’s class and one for Mr. Barker’s class.

1

Part C
Use the dot plots and data to prove or disprove Miss Gerald’s hypothesis

1

Unit 5 – Item 8
What is the probability of rolling a 4 on the number cube? Write your answer as a decimal
rounded to the hundredths place.

1

Unit 5 – Item 9
Morgan picks a marker from a container holding 5 black markers, 3 yellow markers, 1 blue
marker, 6 red markers, and 5 orange markers.

What is the probability Morgan picks a red marker?

Unit 5 – Item 10
Two students are making predictions about flipping a coin 100 times.
1

Who do you agree with? Explain your reasoning.