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The following is the time it takes to run a mile for 3 students: 5, 6,...

The following is the time it takes to run a mile for 3 students: 5, 6, 7

Find the sample variance of the sample.

math   Statistics-And-Probability   
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Answer #1
x (
5 1
6 0
7 1
Total 18 (x - )= 2

-Σ! Τ n 1 Θ..

=\frac{2}{2}

=1

Therefore, the sample variance of the sample = 1

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