Find the sample variance and sample standard deviation for the data set for brand A paint: 10, 60, 50, 30, 40, 20. Using the empirical rule, solve these problems for a distribution with a mean of 80 and a standard deviation of 10.

a. What percentage of values will fall between 60 and 100?

b. What percentage of values will fall between 50 and 90?

c. What percentage of values will fall between 60 and 110?

d. What percentage of values will fall above 50?

e. What percentage of values will fall below 60?