2014 A-level H1 Mathematics (8864) Question 6 Suggested Solutions

All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions.

(i)
X~\sim~N(142.2, 36)

\mathrm{P}(X<146) = 0.737

(ii)
\mathrm{P}(137.2<X<147.2) = 0.595

KS Comments

A very straightforward question. 🙂

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