Question 1 - A-Level Maths

Exam Board	CAIE
Module	S1 (Statistics 1)
Year	2020
Session	June
Topic	Measures of Location and Spread
Type	Calculate mean from coded sums

1 For $n$ values of the variable $x$, it is given that $$\Sigma ( x - 50 ) = 144 \quad \text { and } \quad \Sigma x = 944 .$$ Find the value of $n$.