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Mathematics 13 Online
OpenStudy (anonymous):

A survey of 300 magazine readers was taken because a client has given its advertisement on that magazine. The a matrix has been given with numbers of people who read the magazine, number of ppl who do not, people who buy the soap after reading the magazine and how many ppl buy soap w/o reading the magazine. 1) Was the advertisement effective? 2) Recommendation to client 3) What more questions could have asked to respondents

ganeshie8 (ganeshie8):

Question says : ` The a matrix has been given with numbers... ` where is the matrix ?

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