AQA AS Paper 2 2020 June — Question 13

Exam BoardAQA
ModuleAS Paper 2 (AS Paper 2)
Year2020
SessionJune
TopicBinomial Distribution
TypeFinding binomial parameters from properties

13 The random variable \(X\) is such that \(X \sim B \left( n , \frac { 1 } { 3 } \right)\)
The standard deviation of \(X\) is 4 Find the value of \(n\). Circle your answer.
9121812 Turn over for the next question