A caf recently conducted a survey on its coffee selling by customers age. The owner recorded the

A café recently conducted a survey on its coffee selling by customers’ age. The owner recorded the first 30 customers who visited his café and had chosen coffee as their drink. The customers’ respective ages were recorded in a sample data set as follows:

23 45 28 37 48 51 18 23 13 52 41 21 29 19 20 36 44 37 27 52 37 36 26 27 17 45 39 33 22 36

a. Sort the customers’ age from the youngest to the oldest.

b. Construct a frequency distribution with five equal widths classes.

c. Use the frequency distribution in part b to develop a histogram.

d. Add two more columns which show the relative frequency and cumulative frequency for the frequency distribution in part

b. Determine how many percent of the café’s customers chosen to drink coffee are less than 29 years old.