Probability (Year 7)

Two dice are rolled and it is recorded whether the result on each is odd or even. What is the probability both are odd?

• 1/4

• 1/2

• 2/4

• 3/4

You have a 3 tops, 2 pants and 2 shoes. How many total outfit options are represented?

• 12 outfits

• 22 outfits

• 3 outfits

• 7 outfits

What is the probability that you will get plain crust with ham on your pizza?

• 1/8

• 1/₂

• 1/₁₀

• 2/₁₀

Jason can choose 1 pair of pants and one shirt to wear today. Here are his choices. Which tree diagram shows all of the combinations that Jason can choose from?

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• 
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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 first go?

• ¹/₈

• ⁷/₈

• ¹/₇

• ⁶/₇

Bert & Ernie choose a juice to have for breakfast.

The probability that Bert chooses orange is ³/₄.

If Bert chooses orange, the probability that Ernie chooses orange is ⁴/₅.

If Bert chooses apple the probability that Ernie chooses apple is ²/₃.

Find the value of the probability marked c.

• ¹/₄

• ¹/₅

• ¹/₃

• ³/₄

A 10-cent coin is tossed and an ordinary six-sided die is rolled.

How many possible outcomes are there?

• 2

• 6

• 12

One bag contains 1 red counter, 2 yellow counters and 1 blue counter. Another bag contains 1 yellow counter, 2 red counters and 1 blue counter. One counter is taken at random from each bag.

Find the probability that two yellow counters are chosen.

• 1/16

• 1/8

• 1/4

• 1/2

What is the probability that a student plays an instrument?

• .55
• .5
• .45
• .4

A regular 6-sided die is to be rolled one time. What is the probability that the number 5 is rolled?

• 1/5

• 5/6

• 1/6

• 6/5