Question 1 - A-Level Maths

Exam Board	OCR MEI
Module	AS Paper 2 (AS Paper 2)
Year	2022
Session	June
Topic	Discrete Probability Distributions
Type	One unknown from sum constraint only

1 The probability distribution for the discrete random variable \(X\) is shown below.

\(x\)	1	2	3	4	5
\(\mathrm { P } ( \mathrm { X } = \mathrm { x } )\)	0.2	0.15	\(a\)	0.27	0.14

Find the value of \(a\).