Question
4.138
4.138
Work with a transformation.
Here is a
probability distribution
for a
random variable
:
Value of
1
2
Probability
0.4
0.6
Find the
mean
and the
standard deviation
of this
distribution
.
Let
. Use the rules for means and variances to find the mean and the standard deviation of the distribution of
.
For part (b), give the rules that you used to find your answer.