Probability Review!

Cole has two bags of marbles. The first bag contains 6 red, 5 blue, & 4 green marbles. The second bag contains 3 red, 2 blue, & 4 green marbles. Cole will randomly select 1 marble from each bag. What is the probability he selects a blue marble from each bag?

• 5/9

• 1/35

• 1/6

• 2/27

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

Baylee will roll a number cube and flip a coin for a probability experiment. The faces of the number cube are labeled 1-6. The coin can land on heads or tails. If Baylee rolls the number cube once and flips the coin once, which list contains only the outcomes in which the number cube lands on a number greater than 4?

• 5, Heads

  5, Tails

  6, Heads

  6, Tails

• 5, Heads

  6, Tails

• 1, Heads 1, Tails

  2, Heads 2, Tails

  3, Heads 3, Tails

  4, Heads 4, Tails

  5, Heads 5, Tails

  6, Heads 6, Tails

• 4, Heads

  4, Tails

  5, Heads

  5, Tails

  6, Heads

  6, Tails

Tags

CCSS.7.SP.C.8

Kirsten is setting up tables for a party. Four of the tables are covered with red tablecloths, and eight of the tables are covered with white tablecloths. Guests will be randomly seated at the tables when they arrive. Each table can seat 8 guests. That is the probability that the first guest to arrive will be seated at a table with a red tablecloth?

• 1/2

• 1/3

• 1/4

• 1/8

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

The spinner shown has eight congruent sections. The spinner is spun 120 times. What is a reasonable prediction for the number of times the spinner will land on an even number?

• 75

• 45

• 15

• 40

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.6

On Roy's shelf are:

-6 mystery books

-5 science books

-4 history books

-3 adventure books

Roy will randomly choose 1 book to read. What is the probability that he will choose an adventure book?

• 1/3

• 1/18

• 1/5

• 1/6

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

The spinner shown is divided into congruent sections that are labeled from 1 through 7. If the spinner is spun one time, what is the probability of the arrow NOT landing on a section labeled with an odd number?

• 4/7

• 3/4

• 1/4

• 3/7

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

A bag contains:

-5 red marbles

-6 blue marbles

-3 green marbles

-4 black marbles

-2 yellow marbles

A marble will be drawn from the bag and replaced 100 times. What is a reasonable prediction for the number of times a green or black marble will be drawn?

• 14

• 65

• 7

• 35

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.6

Yates has these cans of soup in his kitchen cabinet.

-2 can of tomato soup -2 can of cheese soup

-3 cans of chicken soup -2 cans of potato soup

-1 can of beef soup

Yates will randomly choose one can of soup. Then he will put it back and randomly choose another. What is the probability he will choose a can of tomato soup then a can of cheese soup?

• 2/5

• 2/45

• 1/25

• 1/5

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

Jaime surveyed customers in a restaurant to find out their favorite meal. One person in the restaurant will be picked at random. Based on the given information, which statement is true?

• This person's favorite meal is twice as likely to be hamburger and french fries as it is to be spaghetti.

• This person's favorite meal is 4 times as likely to be chili as it is to be vegetarian delight.

• This person's favorite meal is more likely to be chili than hamburger and french fries.

• This person's favorite meal is equally likely to be either vegetarian delight or spaghetti.

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.6

CCSS.7.SP.A.1

CCSS.7.SP.A.2

A classroom is arranged with 8 seats in the front row, 10 seats in the middle row, and 12 seats in the back row. The teacher randomly assigns seats to students as they enter the classroom. What is the probability that the first student who enters the classroom will be assigned a seat in the front row?

• 2/5

• 2/3

• 4/11

• 4/15

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7