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[" For two data sets,each of size "5" ,t...

[" For two data sets,each of size "5" ,the variances are given to be "4" and "5" and the "],[" corresponding means are given to be "2" and "4" .The variance of the combined set is "],[[" 1) "(5)/(2)," 2) "(11)/(2)," 3) "sqrt((11)/(2))," 4) "(13)/(2)]]

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