In a survey, 250 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.
E-Mail account No e-mail account
Computer access at home 75 35
No computer access at home 25 115
(a) What percentage of the shoppers have computer access at home?
(b) What percentage of the shoppers do not have an e-mail account?
(a) The total number of shoppers with computer access at home is 75 + 25 = 100.
So, the percentage of shoppers with computer access at home is (100/250) * 100% = 40%.
(b) The total number of shoppers without an e-mail account is 35 + 115 = 150.
So, the percentage of shoppers without an e-mail account is (150/250) * 100% = 60%.