The following contingency table gives the results of a sample survey of South African male and female respondents with regard to their preferred type of cool drink:   Coke Fanta Sparletta Total No. of males 30 70 50 150 No. of females 120 40 90 250 Total 150 110 140 400   1.1.1) What is the probability of selecting a respondent who is male or who prefers Coke? 1.1.2) What is the probability of selecting a male respondent, given that the preferred cool drink is Sparletta? 1.1.3) What is the probability of randomly selecting a respondent who is female and prefers Fanta? 1.1.4) What is the probability of selecting a respondent who does not prefer Fanta? 1.1.5) What is the probability of randomly selecting a female respondent from the sample?

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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.