Probability - 3 Week Review - Simple, Sample, and Prediction

The probability of a female student being chosen on the basketball team is  $\frac{1}{15}$  . If there are  $960$  female students at the school, how many could be on the basketball team?

• 15

• 64

• 96

• 128

Tags

CCSS.7.RP.A.3

Larry opened a bag of skittles and counted the number of each color. He has 10 red, 18 yellow, 9 green, and 13 orange skittles. Based on these results, how many orange skittles can he expect in a larger bag of 300 skittles?

• 299

• 42

• 95

• 78

Tags

CCSS.7.SP.C.6

There are 525 students at Lomax Junior High. Ms. Anderson surveyed the 21 students in her class about their favorite subject. 18 responded that they liked math best. If her class is a representative sample of the whole school, how many students could she predict would like math best out of the entire school?

• 162

• 450

• 501

• 9450

Tags

CCSS.7.SP.A.2

The number of 7th grade students with birthdays by the month are shown in the table. There are 300 total students.

If the teacher picks a student at random, what is the probability that she will select a student with a birthday in July?

• 
  

  $\frac{27}{100}$
  

• $\frac{9}{300}$

• $\frac{9}{100}$

• $\frac{3}{100}$

Tags

CCSS.7.SP.C.7B

A bowl has 28 skittles in it. There are 10 watermelon, 5 green apple, and 13 blueberry. What is the probability of getting a cherry?

• 1

• 
  

  $\frac{10}{28}$
  

• $\frac{5}{28}$

• 0

Tags

CCSS.7.SP.C.7B

Josie has a jar with 25 marbles in it. 5 are green and 20 are pink. What is the probability that Josie will pull a green marble? (SIMPLIFY!)

• 
  

   $\frac{1}{4}$  
  

•  $\frac{4}{5}$  

•  $\frac{1}{5}$  

•  $\frac{5}{25}$  

Tags

CCSS.7.SP.C.7B

Jiovanie wants to find out which sport the entire 7th grade class at his school likes best. Which group of students should he survey so that his results are most likely to represent the ENTIRE 7th grade class?

• the girls basketball team

• his friends soccer team

• Ms. Anderson's math class

• a PE class

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

What is this probability as a decimal?

 $\frac{4}{5}$  

•  $0.4$  

•  $0.6$  

•  $0.8$  

What is this probability as a decimal?

 $\frac{7}{10}$  

•  $0.4$  

•  $0.5$  

•  $0.7$  

•  $0.9$  

Tags

CCSS.7.SP.C.5

If every region is equal, what is the probability that you will spin the arrow and land on an EVEN number?

• 
  

  $0.5$
  

• $0.4$

• $0.6$

• $0.8$

Tags

CCSS.7.SP.C.7A