1.

If the standard deviation of \( x, y= \) is \( p \) then the Standard deviation of \( 3 x+5,3 g+5 \)

Answer»

\(\sigma\)(x, y) = p

\(\because\sigma\)(ax + b) = |a| \(\sigma\) (x)

\(\therefore\) \(\sigma\) (3x + 5, 3y + 5) = \(\sigma\)(3(x, y) + (5, 51)) = 3 \(\sigma\)(x, y)

= 3p



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