Answer and Explanation:
The computation of the expected return and the standard deviation is given below:
the expected return is
= $90,000 × 13% + $60,000 × 6.6%
= $15,660.00
And,
standard deviation of return is
= $90,000 × 13% × 44% + $60,000 × 6.6%
= $5,148 + $3,960
= $9,108.00
In this way it should be calculated