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Continuous random variables and the normal distribution — Question 43

Original QCE Vault practice · 5 marks

Q43 · Practice questionTechnology-activeComplex unfamiliar5 marks

QUESTION 43 (5 marks)

A normally distributed random variable XX satisfies P(X<42)=0.10P(X<42)=0.10 and P(X<58)=0.90P(X<58)=0.90. Determine the mean and standard deviation of XX to three significant figures.
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