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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Markscheme
3.3 The Inverse Normal Distribution Function Questions
21 exam-style questions on Edexcel A Level Maths 3.3 The Inverse Normal Distribution Function. Each one has a worked solution and a mark scheme showing where the marks go.