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Complement of an Event

A game consis...

Question

A game consists of a spinning arrow that comes to rest pointing at one of the numbers $1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12$ ; as shown below.
If the outcomes are equally likely, find the probability that the pointer will point at $6$ .

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Solution

We have,
Total number of possible outcomes $= 12$
Number of favorable outcomes for $6 = 1$
Hence, P(the pointer will point at $6$ ) $= 1 / 12$

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