What is the expected rate of return?

Question

The probability distrubution for the rate of return on an investment is:

rate of return      Probability

9.5                           .1

9.8                           .2

10.                           .3

10.2                        .3

10.6                         .1

 

What is the variance of the rate of return?

Answer 1

anser=10.1

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