Answer:
The answer is 0.0707
Explanation:
Solution
Given that:
Probability Return Probability(return-expected return)^2
0.25 25 0.25(25-15)^2=25
0.5 15 0.5(15-15)^2=0
0.25 5 0.25(5-15)^2=25
Total = 25 +0 + 25
= 50
Thus
The next step is to find the standard deviation which is given below:
Standard deviation=[total probability (return-expected return)^2/total probability]^(1/2)
=(50)^(1/2)
=0.0707
Hence the standard deviation is 0.0707.
Note: The expected return is =15%
