For a math test on which the mean was 59 and the standard deviation was 4, what is the probability that a student randomly selected from this class will have a score
a. between 55 and 65? _____
b. between 60 and 65? _____
c. above 65? _____
d. between 60 and 50? _____
e. between 55 and 50? _____
f. below 55? _____
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