If a distribution of test scores is normal with a mean of 78 and a standard deviation of 11, what percentage of the area lies a. below 60? _____ b. below 70? _____ c. below 80? _____ d. below 90?...

If a distribution of test scores is normal with a mean of 78 and a standard deviation of 11, what percentage of the area lies

a. below 60? _____

b. below 70? _____

c. below 80? _____

d. below 90? _____

e. between 60 and 65? _____

 f. between 65 and 79? _____

 g. between 70 and 95? _____

h. between 80 and 90? _____

i. above 99? _____

 j. above 89? _____

 k. above 75? _____

 l. above 65? _____