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2.4.2 The Normal distribution (A-level only)

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Question 16

A variable X X\,X is normally distributed with a standard deviation of 1.8. Given P(X<25)=0.22P(X < 25) = 0.22P(X<25)=0.22, find the mean of XXX.

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2.4.2 The Normal distribution (A-level only) Questions

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