Let X denote the number of VCRS sold during a random week by a certain store. The probability function of X is r f(x)
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![Let X denote the number of VCRS sold during a
random week by a certain store. The probability
function of X is
x f(x)
0
0.6164
1 0.0956
2
0.0354
3
0.0461
4 0.2065
Calculate the variance of Y = 4X + 2.
:
Var (Y)
=
Y
Note: You can calculate the variance of Y using the
definition of variance: o = E[Y - µy]. However,
you have to calculate first the expected value of Y,
μy = E[4X + 2].](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb04829d0-4645-426e-bf1a-7ada40b0786f%2F46e70c26-51b4-405e-9215-04fa8560decd%2Fo9l2dn_processed.jpeg&w=3840&q=75)
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