Question

There are 500 computers in an office building. The IT manager randomly chose 40 computers to be inspected for viruses. Of those inspected, 6 computers had viruses.

What is the best estimate of the percent of computers in the building that have viruses?



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___%

Answer 1

15%

Explanation:

The population proportion can be estimated as the sample proportion.

6 / 40 = 0.15

Approximately 15% of the computers have viruses.

Answer 2

Answer: Hence, there are 15% of computers have viruses.

Explanation:

Since we have given that

Total computers in an office = 500

Number of computers to be inspected = 40

Number of computers had viruses = 6

We need to find the percentage of the computers in the building that have viruses.

So, Percentage of computers in the buildings have viruses is given by

`(6)/(40)* 100\\\\=(600)/(40)\\\\=15\%`

Hence, there are 15% of computers have viruses.