Probability Review

There are 10 counters in a bag, 3 red and 7 blue.

I take one counter, then another without replacement.

Find the probability of the value marked y

• ⁷/₁₀

• ³/₁₀

• ⁶/₉

• ²/₉

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

There are 10 counters in a bag, 3 red and 7 blue.

I take one counter, then another without replacement.

Find the probability of the value marked w

• ⁷/₁₀

• ³/₁₀

• ⁶/₉

• ²/₉

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

There are 8 counters in a bag, 1 is red.

I take one counter, replace it, then take another.

What is the probability of taking a red counter on the second go?

• ¹/₈

• ⁷/₈

• ¹/₇

• ⁶/₇

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

The diagram shows the sports played by 80 students.

If a student is picked at random, what is the probability that they play Hockey and Rugby?

• ³⁶/₈₀

• ⁵/₈₀

• ⁴¹/₈₀

• ⁴⁴/₈₀

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.8

The diagram shows the sports played by 80 students.

If a student is picked at random, what is the probability that they don't play any of the three sports?

• ⁷⁹/₈₀

• ¹/₈₀

• ⁷⁴/₈₀

• ⁶/₈₀

Tags

CCSS.7.SP.C.5

The diagram shows the sports played by 80 students.

If a student is picked at random, what is the probability that they play Rugby or Hockey?

• ⁷⁵/₈₀

• ⁸/₈₀

• ¹³/₈₀

• ⁴⁴/₈₀

Tags

CCSS.7.SP.C.5

The diagram shows the sports played by 80 students.

If a student is picked at random, what is the probability that they don't play Rugby?

• ²⁴/₈₀

• ⁷⁷/₈₀

• ²³/₈₀

• ¹⁷/₈₀

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

The diagram shows the sports played by 80 students.

If a student is picked at random, what is the probability that they don't play Football?

• ¹⁴/₈₀

• ¹³/₈₀

• ⁷⁶/₈₀

• ⁷⁵/₈₀

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

Identify the shaded area...

• A∩B

• A∪B

• A'∩B'

• A'∪B'

Tags

CCSS.7.G.B.6

Identify the shaded area...

• A'∩B

• A∩B'

• A∪B'

• A'∪B

Tags

CCSS.7.G.B.6