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If the sd of x is 3 what is the variance of (5-2x) ? pls do show the steps
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If the sd of x is 3 what is the variance of (5-2x) ? pls do show the s...
Sd doesn't affected by origin but affected by scale so 2x= 2*3=6 it is sd now variance = square of sd v=6 ka squareso answer is 36
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If the sd of x is 3 what is the variance of (5-2x) ? pls do show the s...
Given, sd of X is 3.
Y=5-2X

sd of y =|-2|sd of X
i.e sd of Y = 2 x 3 =6

variance = square of sd
vay of y = 6^2=36. (ans)
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If the sd of x is 3 what is the variance of (5-2x) ? pls do show the steps
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