18 Bob is an investment manager.  He tells his client that the probability of making a positive return is 0.90 Return are normally distributed with a mean of ? = 5.6 percent     What is the risk, measured by standard deviation, that Bob assumes in his calculations? a 3.71               b 4.37               c 5.14               d 6.05

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18 Bob is an investment manager.  He tells his client that the probability of making a positive return is 0.90
Return are normally distributed with a mean of ? = 5.6 percent

 

  What is the risk, measured by standard deviation, that Bob assumes in his calculations?
a 3.71              
b 4.37              
c 5.14              
d 6.05              
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