Question

The records of a computer retail store show that out of the 20 customers who purchased a desktop computer last month, all but 5 also purchased a service plan that extends the warranty for an extra year. Out of the 100 customers who purchased a notebook computer last month, all but 12 purchased the same service plan.

Fill in the blanks of the statement below to make the statement the most reasonable possible.

Last month, customers of the store who purchased ______ computers were more likely to purchase the service plan, because only ____ did not purchase the Service plan, whereas ______of the customers who bough _______ computers did not purchase the service plan.

Answer 1

Desktop Computer

total people who bought desktop computer = 20

number of people who purchased a service plan that extends the warranty for an extra year = 5

So percentage of people who bought desktop computer with extended warranty are :

= 5/20 = 0.25

In percentage = 0.25*100 = 25%
And percentage of people who did not bought with extended warranty = 100 - 25 = 75%

Notebook Computer

total people who bought notebook computer = 100

number of people who purchased with same service plan = 12

So percentage of people who bought notebook computer with extended warranty are :

= 12/100 = 0.12

In percentage = 0.12 * 100 = 12%
And percentage of people who did not bought with extended warranty = 100 - 12 = 88%

Last month, customers of the store who purchased desktop computers were more likely to purchase a service plan, because only 75% did not purchase the service plan, whereas 88% of the customers who bought notebook computer did not purchase the service plan.