Answer
mean=34.5
standard deviation=13.3
$93\%$ of the data fall within 2 standard deviation.
Chebyshev’s theorem predicts that at least $75\%$ of the data fall within 2 standard deviation.
For this case, Chebyshev’s theorem worked a little better than the previous question, but still
far away from the true value.
Work Step by Step
mean=34.5
standard deviation=13.3
Range within 2 standard deviation: 7.9 to 61.1 contains 28 out of 30 data points, $93\%$
Chebyshev’s theorem predicts that at least $75\%$ of the data fall within 2 standard deviation.
For this case, Chebyshev’s theorem worked a little better than the previous question, but still
far away from the true value.
