Chebyshev’s theorem can be stated in an equivalent form to that given on page 109. For example, to say “at least 75% of the data fall within 2 standard deviations of the mean” is equivalent to stating “at most, 25% will be more than 2 standard deviations away from the mean.”

a. At most, what percentage of a distribution will be 3 or more standard deviations from the mean?

b. At most, what percentage of a distribution will be 4 or more standard deviations from the mean?