pick n pay  checkers woolworths total no females 70 60 125 255 no males  70 50 25 145 total 140 110 150 400 1 ) What is the probability of randomly selecting a male respondent from the sample? 2 )What is the probability of randomly selecting a respondent who is female and prefers Checkers?  3 )What is the probability of selecting a male respondent, given that the preferred supermarket is Pick n Pay? 4 )What is the probability of selecting a respondent who is male or who prefers Woolworths? 5 )What is the probability of selecting a respondent who does not prefer Woolworths?

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.