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Probability · Question 9 of 70

Question 9

EasyOriginal question

Two dice are thrown. How many outcomes does the event 'the sum is 8' contain?

Options for question 9

Show the answer and explanation
CorrectNot quiteAnswer C

Correct answer: C

Explanation

  1. List the ordered pairs with sum 8.

  2. (2,6),(3,5),(4,4),(5,3),(6,2)(2, 6), (3, 5), (4, 4), (5, 3), (6, 2): 5 outcomes.

Worth noting

4 counts (4,4)(4, 4) twice or misses it; (3,5)(3, 5) and (5,3)(5, 3) are different outcomes, (4,4)(4, 4) is one.

Concept
Outcomes in an event
Typical time
60 s
Your time
—
The rule this testsEvents and sample spaces
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Ten questions from Probability, at your own pace.

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