The volume of juice, V V\,V ml, in a certain brand of carton follows a normal distribution with a standard deviation of 15. It is known that P(V<400)=0.08P(V < 400) = 0.08P(V<400)=0.08. Find the mean volume of juice in a carton.
328 exam-style questions on WJEC A Level Maths 4.2 Statistical distributions (A-level only), covering 4.2.1 Statistical distributions (A-level only), 4.2.2 Statistical distributions (A-level only), and 4.2.3 Statistical distributions (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.