A random variable X X\,X has the distribution X∼N(30,16)X \sim N(30, 16)X∼N(30,16).
Identify the standard deviation of XXX.
Circle your answer.
A
444
B
888
C
161616
D
303030
Markscheme
2.4.2 The Normal distribution (A-level only) Questions
351 exam-style questions on AQA A Level Maths 2.4.2 The Normal distribution (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.