Question

in a survey, 150 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.

	computer access at home	no computer access at home
no e - mail account	9	81

(a) what percentage of the shoppers do not have computer access at home?
(b) what percentage of the shoppers have an e - mail account?

Explanation:

Step1: Calculate percentage of shoppers without computer access at home

The number of shoppers without computer access at home is \(12 + 81=93\). The total number of shoppers is \(150\). The percentage formula is \(\text{Percentage}=\frac{\text{Number of relevant cases}}{\text{Total number of cases}}\times100\). So, \(\frac{93}{150}\times 100 = 62\).

Step2: Calculate percentage of shoppers with an e - mail account

The number of shoppers with an e - mail account is \(48+12 = 60\). Using the percentage formula \(\frac{60}{150}\times100=40\).

Answer:

(a) 62%
(b) 40%