Question

what is variance?........​

Answer 1

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It what is the mean of square of deviation of observations from mean.

It is denoted by see the attachment or var(x)

Answer 2

Answer:

hlo Ji

Step-by-step explanation:

Variance :

variance is the expectation of the squared deviation of a random variable from its mean.

Formula:

$\frac{ {(x - \gamma )}^{2} }{n}$

Hope it helps ❣️