Question

44 postgraduate students were surveyed and the following data was recorded for each respondent: ID, Gender, Age, Major, GPA, Employment, Number of incoming and outgoing text messages per year, Spending per month and Salary expectation in thousands of dollars.  

Question:

1. Explain how random sampling might have been used to collect this data. (please explain in detail)

Answer 1

giren Jh the seenario where data based om vario characteuaties, We can we hane guren Clasdity erusti Such as data on the basis af few major charat ( Gendn ie male and temale Spending per month or salary expectctions ete) /O7 0r he chanautens tic around which me want to Study amd cleasify them and strahfication of populoction muat be done in different Stratas as ay that Strata inemielnes with reekect Such a homogenesus withen to chanaiteristu unole are stiudy After classifyng data into vaious stratas, seleut sample rem each strata Stucly we can randomly caty and can Strahted rarolon sampling wil ae beat in nis sunario because it provicles better crass section the populanon ,40 as to ganhighe dagrue relative preci ion