The following contingency table gives the results of a sample survey of South African male and female respondents with regard to their preferred supermarket: Preferred Supermarket Pick n Pay Checkers Woolworths Total No. of Females 70 60 125 255 No. of Males 70 50 25 145 Total 140 110 150 400 What is the probability of randomly selecting a male respondent from the sample? What is the probability of randomly selecting a respondent who is female and prefers Checkers? What is the probability of selecting a male respondent, given that the preferred supermarket is Pick n Pay?
The following
Preferred Supermarket
Pick n Pay Checkers Woolworths Total
No. of Females 70 60 125 255
No. of Males 70 50 25 145
Total 140 110 150 400
What is the
sample?
What is the probability of randomly selecting a respondent who is female
and prefers Checkers?
What is the probability of selecting a male respondent, given that the
preferred supermarket is Pick n Pay?
What is the probability of selecting a respondent who is male or who
prefers Woolworths?
What is the probability of selecting a respondent who does not prefer
Woolworths?
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