The following data give the number of text messages sent on 40 randomly selected days during 2012 by a high school student:

a. Construct a frequency distribution table. Take 32 as the lower limit of the first class and 6 as the class width.
b. Calculate the relative frequency and percentage for each class.
c. Construct a histogram for the frequency distribution of part a.
d. On what percentage of these 40 days did this student send more than 44 text messages?

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