Estimating Probabilities

A 7th grade student surveyed students at her school. She asked them to name their favorite pets. The bar graph shows the results of the survey. How many students answered the survey question?

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

A 7th grade student surveyed students at her school. She asked them to name their favorite pets. The bar graph shows the results of the survey. How many students said that a snake was their favorite pet?

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

Based on the bar graph, what is the probability that a dog is a person's favorite pet?

•  $\frac{9}{31}$  

•  $\frac{6}{31}$  

•  $\frac{15}{31}$  

•  $\frac{9}{9}$  

•  $\frac{3}{9}$  

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.6

CCSS.7.SP.C.7

Based on the bar graph, what is the probability that a gerbil is a person's favorite pet?

• $\frac{2}{31}$

• $\frac{0}{2}$

• $\frac{5}{31}$

• $\frac{2}{2}$

• $\frac{1}{6}$

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

A 7th grade student surveyed 25 students at her school. She asked them how many hours a week they spend playing a sport or game outdoors. What is the probability of the students answering 3 hours?

• $\frac{7}{25}$

• $\frac{1}{25}$

• $\frac{3}{25}$

• $\frac{19}{25}$

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

CCSS.7.SP.C.5

Hairold throws a 12-sided number solid with faces labeled 1 through 12. Which term describes the probability that Hairold will roll a number greater than 12?

• Certain

• Unlikely

• Impossible

• Likely

Tags

CCSS.7.SP.C.5

A random selection will be made from a bag containing different colored disks. Of the 25 disks in the bag, 5 are yellow. It is ___________ that a yellow disk will be randomly selected from the bag.

• Unlikely

• Likely

• Impossible

• Certain

• Equally Likely

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

Michael is planting a garden. The probability that a seed will produce a plant is $\frac{9}{10}$ . The probability that a seed will produce a plant is _______%. 

Tags

CCSS.7.SP.C.5

Of all 25 marbles in a bag, 3 of the marbles are white. What is the probability that a white marble will be randomly selected from the bag without looking? Write your answer as a percent. ________%

Tags

CCSS.7.RP.A.3

CCSS.7.SP.C.5

A bag contains 80 colored tokens. Of all the tokens in the bag, 25 are black and the rest are red. Find, in percent form, the probability of choosing a black token from this bag. The probability of choosing a black token is ________%.

Tags

CCSS.7.RP.A.3

CCSS.7.SP.C.5

CCSS.7.SP.C.7