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bachelor in business administration
Polytechnic State University Sanluis
Jan-2006 - Nov-2010
CPA
Polytechnic State University
Jan-2012 - Nov-2016
Professor
Harvard Square Academy (HS2)
Mar-2012 - Present
The following table, reproduced from Exercise 2.14, gives the frequency distribution of the gallons of gasoline purchased by all customers on one day at a certain gas station.
Â
|
Number of Gallons |
Number of Customers |
|
0 to less than 4 |
31 |
|
4 to less than 8 |
78 |
|
8 to less than 12 |
49 |
|
12 to less than 16 |
81 |
|
16 to less than 20 |
117 |
|
20 to less than 24 |
13 |
Â
Â
a. Prepare a cumulative frequency distribution.
b. Calculate the cumulative relative frequency and cumulative percentage for each class.
c. Find the percentage of customers who purchased less than 16 gallons.
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