## Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition

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.
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.