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If the S.D. of a variate R is sigma, the...

If the S.D. of a variate R is `sigma`, then the S.D. of pR+q is

A

`p/sigma`

B

`sigma`

C

`p sigma`

D

`p sigma+q`

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FIITJEE-STATISTICS-Solved Problems(Objective)
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  10. The variance of first n natural number is:

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  14. The variance of the vriates 112, 116,120,125,132 about their A.M. is

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  15. The co-eff. Of variation of a data is 58%, S.D. of the data is 2.32 th...

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  17. If the regression co-efficients are 0.8 and 0.2, then the value of co-...

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  18. If S.D of a variable x is sigma then S.D of (ax+b)/c is

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