A variable Y Y\,Y is normally distributed with a standard deviation of 2.8. Given P(Y<26)=0.3P(Y < 26) = 0.3P(Y<26)=0.3
Find the mean of YYY.
Practise Edexcel A Level Maths The Normal Distribution with exam-style questions for A Level Maths. 439 questions, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.