7th grade math STAAR review (probability set)

• F

• G

• H

• J

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7.6.A

Bailey will roll a number cube and flip a coin for a. probability experiment. The faces f the number cube are labeled 1 through 6. The coin can land on heads or tails. If bailey 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

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7.6.A

Vincent flipped three coins during a probability experiment. The outcomes of the first 40 trials are shown in the table.

Based on the information in the table, in how many of the next 120 trials will the outcome be exactly two of the coins showing heads?

Mathematical Equivalence

ON

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7.6.C

A study of a population of 1,200 frongs revealed that 12 out of every 180 frogs in the population have spots on their back. Based on the results of this study, there are __ frogs in the population that do NOT have spots on their backs.

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7.6.C

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

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7.6.D

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?

Mathematical Equivalence

ON

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7.6.D

A teacher has a container of paper clips. She will randomly select one paper clip from the container. The container has:

- 8 pink paper clips

- 14 purple paper clips

- 12 yellow paper clips

- 16 blue. paper clips

Fill in the information so that the statement is true.

The probability of selecting a purple paper clips is ​ (a)   , and the probability of selecting a paper clip that is not purple is ​ (b)  

• 7/25
• 18/25
• 3/4
• 1/4

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7.6.E

The spinner shown is divided into congruent sections tat are labeled from 1 to 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?

Mathematical Equivalence

ON

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7.6.E

The table shows the number of bottles of different kinds of juice sold at a cafeteria on Monday.

If the cafeteria has 80 customers on Tuesday, which prediction for Tuesday is NOT supported by the data in the table?

• The number of bottles of cranberry juice sold will be 6 more than the number of bottles of pineapple juice sold.

• The number of bottles of apple juice sold will be 6 times the number of bottles of cranberry juice sold.

• There will be a total of 50 bottles of orange and cranberry juice sold.

• The difference between the number of bottles of apple juice sold and the number of bottles of pineapple juice sold will be 14.

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7.6.H

Tara has two bags of marbles. The first bag contains 6 red marbles, 5 blue marbles, and 4 green marbles. The second bag contains 3 red marbles, 2 blue marbles, and 4 green marbles. Tara will randomly select 1 marble from each bag.

The probability that Tara will select a blue marble from each bag is ​ (a)   out of ​ (b)   .

• 2
• 27
• 5
• 9
• 1
• 135
• 6

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7.6.I