10. I will have this liked!! thank you

A firm has the NPV of a project based on three possible economic conditions and their probabilities given below. The expected NPV is $63.1 million. What is the standard deviation for the project's NPV? Economic condition Probability of outcome NPV ($ million) Recession 30 18 Boom .60 90 No change 10 37 35.58 30.35 33.85 30.58 35.35