1.

Letx_(1),x_(2),………,x_(n)be n observation , and letbar(x)be thrirarithmeticmeanand sigma^(2)be theirvariance. Statement1 : Variance of 2x_(1),2x_(2),…..,2x_(n) is 4sigma^(2). Statement 2 : Arithmetic meanof 2x_(1),2x_(2),......,2x_(n) is 4 bar(x).

Answer»

Statemnet 1is ture , Statement 2 is ture, Statement 2 is a correct EXPLANATION for Statement 1
Statement 1 is ture Statement2 is FALSE
Statement 1 is falsefalse, Statement2 is ture
Statement 1 is ture , Statement2 is true, Statement 2 is correct EXPLANATIONFOR Statement 1

Answer :B


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