The mean and standard deviation of a random variable x are -3 and 4 respectively. Find the mean and standard deviation of the given random variabies: (1) y = x +5 u = 2 O = 4 (2) v = 7x u = -21 16 (3) w = 7x + 5 -16 %3D 16

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The mean and standard deviation of a random variable x are -3 and 4 respectively.
Find the mean and standard deviation of the given random variabies:
(1) y = x + 5
u = 2
O = 4
(2) v = 7x
%3D
u = -21
16
%3D
(3) w = 7x + 5
%3D
-16
O =
16
Transcribed Image Text:The mean and standard deviation of a random variable x are -3 and 4 respectively. Find the mean and standard deviation of the given random variabies: (1) y = x + 5 u = 2 O = 4 (2) v = 7x %3D u = -21 16 %3D (3) w = 7x + 5 %3D -16 O = 16
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