The heights of a group of people are normally distributed with a mean of 164 cm and 10% of the people have a height of less than 150 cm.
Find the standard deviation of the heights of the people.
390 exam-style questions on AQA A Level Maths 2.4 N: Statistical distributions, covering 2.4.1 Discrete distributions and the binomial, 2.4.2 The Normal distribution (A-level only), and 2.4.3 Selecting an appropriate distribution (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.