Essential Genetics 6th Edition by Daniel Hartl

Exercise 1

The following questions pertain to a normal distribution.
(a) What term applies to the value along the x -axis that corresponds to the peak of the distribution?
(b) If two normal distributions have the same mean but different variances, which is the broader?
(c) What proportion of the population is expected to lie within one standard deviation of the mean?
(d) What proportion of the population is expected to lie within two standard deviations of the mean?