Ononot — Given a dataset of n=10 test scores, let xi be the scores. I

Guest Session: 1 Question Remaining. Create Account to save progress.

Descriptive Statisticsmedium

0:00.0

Given a dataset of $n=10$ test scores, let $x_i$ be the scores. If the sum of squares is $\sum_{i=1}^{10} x_i^2 = 8000$ and the mean is $\bar{x} = 20$ , what is the population variance $\sigma^2$ ?