Consider the following frequency distribution:
Interval Frequency
1,000 < x ≤ 1,100 22
1,100 < x ≤ 1,200 38
1,200 < x ≤ 1,300 44
1,300 < x ≤ 1,400 16
a.) Construct the relative frequency distribution. What proportion of the observations are more than 1,100 but no more than 1,200?
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b.) Construct the cumulative frequency distribution. How many of the observations are 1,300 or less?
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c.) Construct the cumulative relative frequency distribution. What proportion of the observations are 1,300 or less? More than 1,300?
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