Activity- statistics problems

Problem 1

If n =10, = 12 and = 1530 find coefficient of variation

INTERPRETATION OF PROBLEM

Previous knowledge

Solution

${\frac {\sum x}{n}}={\bar {x}}$

$\sum {x}={{\bar {x}}\times {n}}$

$\sum {x}={12\times {10}}$

$\sum {x}=120$
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