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Question

Question 12 (i)
A game of chance consists of spinning an arrow which comes to rest pointing at one of the numbers 1, 2, 3, 4, 5, 6, 7, 8 (see figure) and these are equally likely outcomes. What is the probability that it will point at 8?

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Solution

Out of 8 numbers, an arrow can point any of the numbers in 8 ways.
Total number of outcomes = 8
Favourable number of outcomes (arrow points at 8) = 1

Hence, P (arrow points at 8)
=Favourable number of outcomesTotal number of outcomes=18

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