A stock had the following annual returns: 896, 15%, 12%, and 5%, what is the sto

Question

A stock had the following annual returns: 896, 15%, 12%, and 5%, what is the stock's expected return, variance, and standard deviation? (Show your answer to 4 decimals. Please NOTE when solving for standard deviation use your rounded answer from variance.) Expected Return: Variance: Standard Deviation D Question 4 3 pts A stock has an expected return of 9% and a standard deviation of 11.9%. what is the 68%, 95%, and 99% confidence interval for this stock? (Show your answer to the nearest 3 decimals) Upper range of 68% confindence interval: Lower range of 68% confidence interval: Upper range of 95% confindence interval: Lower range of 95% confindence interval: Upper range of 99% confindence interval: Lower range of 99% confindence interval:

Explanation / Answer

1)epected return =(8+15+12+5)/4 =10

variance =19.3333 ( please try 14.50 if this does not work cause it is not given if it is a sample or population

std deviaiton=4.3970(  please try 3.8079 if this does not work cause it is not given if it is a sample or population)

4)

upper range of 68% CI =9+11.9=20.9

lower range of 68% CI =9-11.9=-2.9

upper range of 95% CI =9+2*11.9=32.8

lower range of 95% CI =9-2*11.9=-14.8

upper range of 99% CI =9+3*11.9=44.7

lower range of 99% CI =9-3*11.9=-26.7

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