Given that X∼N(30,16)X \sim N(30, 16)X∼N(30,16) find the following probabilities:
P(X>34)P(X > 34)P(X>34)
P(X<26.8)P(X < 26.8)P(X<26.8)
P(25<X<31)P(25 < X < 31)P(25<X<31)
149 exam-style questions on OCR (MEI) A Level Maths 2.4.12 Calculate probabilities from a Normal distribution (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.