Probability and Numerical Representations

In a random survey of 50 students at Great Middle School, 32 said chocolate was their favorite flavor of yogurt. The school has 450 students. How many of them are likely to select chocolate as their favorite flavor? 

• 144
• 162
• 225
• 288

Tags

CCSS.7.RP.A.2C

The sections of spinner below are shaded red, blue, or green. Out of 24 spins, how many times will the spinner land on blue or green? 

• 16
• 20
• 12
• 6

Tags

CCSS.7.SP.C.6

Awesome Middle School has 250 students. A random sample of 25 students were asked how many TVs they have at home. The results are shown in the dot plot below. 

• A
• B
• C
• D

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

There are 25 counters in a bag: 6 red,
4 white, 7 blue, and 8 yellow. You choose one counter at random. Which color are you least likely to choose? 

• white 
• blue 
• red 
• yellow

Michael recorded the color of each car that passed by his office. He saw 30 blue cars and 40 green cars. Which of the following shows an accurate prediction or comparison? 

• Out of 7 cars, Michael will see 3 blue cars and 4 green cars. 
• Out of 70 cars, half of the cars Michael sees will be blue and half will be green. 
• Out of the cars, Michael will see more blue cars than green cars. 
• Out of 10 cars, Michael will see 3 blue cars. 

Tags

CCSS.6.RP.A.3A

Mari Bought 6 packets of tomato seed. Each packet contained 24 seeds. She planted 1 packet of seeds, and 15 seed sprouted.

Which statement about the seeds in the reaming packets is best supported by this information?

• No more than 50 seeds will sprout.

• Between 50 and 100 seeds will sprout

• At least 100 but no more than 120 seeds will sprout

• all 120 seeds will sprout

MS. Walker surveyed her students about the number of siblings they have. The results are shown in the table above.

Ms. Walker chooses one student at random. Based on the results in the table, which statement is true?

• The student is just as likely yo have 1 sibling as to not have 1 sibling

• The student is half as likely yo have 3 sibling as more than 3 siblings.

• The students is twice as likely to have 1 sibling as 2 siblings.

• The students is half as likely to have 2 sibling as 3 or more siblings.

Tags

CCSS.HSS.MD.B.6

CCSS.HSS.MD.B.7

A bag contains colored tiles.

6 tiles are red

12 tiles are green

6 tiles are blue

A tile will be randomly selected from the bag. What is the probability in decimal form that the tile selected will be green?

• 0.75

• 0.25

• 0.50

• 1.00

Tasha has these cans of soup in her kitchen cabinet:

4 cans of tomato soup
6 cans of chicken soup
4 cans of cheese soup
4 cans of potato soup
2 cans of beef soup

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

• $\frac{2}{5}$

• $\frac{2}{45}$

• $\frac{1}{25}$

• $\frac{1}{5}$

On Felicia's shelf are:

12 mystery books

10 science books

8 history books

6 adventure books

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

• $\frac{1}{3}$

• $\frac{1}{18}$

• $\frac{1}{5}$

• $\frac{1}{6}$