For the following data set, calculate the percentage of
data points that fall within one standard deviation of the
mean, and compare the result to the expected
percentage of a normal distribution.
{50, 46, 54, 51, 29, 52, 48, 54, 47, 48}
80%; This percentage is lower than expected in a
normal distribution.
80%; This percentage is higher than expected in a
normal distribution.
90%; This percentage is lower than expected in a
normal distribution.
90%; This percentage is higher than expected in a
normal distribution.