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Suppose that the average score for professional bowlers can be described by the normal model where the mean is 240 points and the standard deviation

Suppose that the average score for professional bowlers can be described by the normal model where the mean is 240 points and the standard deviation is 12 points.

What proportion of bowlers have an average score above 253?

Suppose that the average score for professional bowlers can be described by the normal model where the mean is 240 points and the standard deviation is 12 points.

What score would a professional bowler need to have in order to be in the 92nd percentile?

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