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In: Statistics and Probability

Calculate the coefficient of variation of the following distributions and identify which distribution has the greatest...

  1. Calculate the coefficient of variation of the following distributions and identify which distribution has the greatest risk. ( You may do the calculation in the Excel but show your work here for partial credits.) (3 points)

Distribution 1                          Distribution 2                        Distribution 3        

Outcome Prob                  Outcome Prob Outcome   Prob

       $100      0.10                     $100            0.20                   $0             0.30

       $400      0.20                     $500            0.30                   $200          0.10

       $800      0.70                     $600      0.50                         $1000         0.60

  1. Assume that a loss history is normally distributed with a mean of $5,000 and a standard deviation of $1,500.
    1. What’s the probability that the next loss will be greater than $5,750? (1.5 points)
  1. If the risk manager is willing to tolerate 2% chance that costs will be greater than the maximum probable loss, what is the maximum probable loss level? (1.5 points)
  1. In what range, with 95 % certainty, can we expect the losses to fall this coming year? (2 points)
  1. Assume the investment return of a mutual fund during a month follows a normal distribution with a mean of 0.04 and a standard deviation of 0.01. For a fund manager with a risk tolerance level of 1%, what would be the estimated Value at Risk of the fund return? (2 points)

NOTE: You may use the function of morm.dist ( ) and norm.inv ( ) in Excel to figure out the probability of a normal distribution and the z score of a corresponding probability

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