Question

in a survey, 300 shoppers were asked whether they have access to a computer at home and if they have a personal e - mail account. their responses are summarized in the following table.

(a) what percentage of the shoppers have computer access at home?
(b) what percentage of the shoppers have an e - mail account?

Explanation:

Step1: Calculate the number of shoppers with computer access at home

The number of shoppers with computer access at home is \(90 + 42=132\).

Step2: Calculate the percentage of shoppers with computer access at home

The formula for percentage is \(\frac{\text{Part}}{\text{Whole}}\times100\%\). Here, the part is \(132\) and the whole is \(300\). So the percentage is \(\frac{132}{300}\times 100\% = 44\%\).

Step3: Calculate the number of shoppers with an e - mail account

The number of shoppers with an e - mail account is \(90+24 = 114\).

Step4: Calculate the percentage of shoppers with an e - mail account

Using the percentage formula \(\frac{\text{Part}}{\text{Whole}}\times100\%\), with part \(114\) and whole \(300\). So the percentage is \(\frac{114}{300}\times100\%=38\%\).

Answer:

(a) \(44\%\)
(b) \(38\%\)