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? _____
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