Chebysheff's Theorem states that the percentage of measurements in a data set that fall within three standard deviations of their mean is:
A)75%.
B)at least 75%.
C)89%.
D)at least 89%.

Question

Quizplus · Accepted Answer

Chebysheff's Theorem states that for any data set, regardless of distribution, at least 1 - (1/k^2) of the data falls within k standard deviations from the mean. For k=3, this is at least 1 - (1/9) = 89%.

Chebysheff's Theorem States That the Percentage of Measurements in a Data