Ich versuche diese Aufgabe seit einer Woche zu lösen... ohne jeglichen Erfolg. Gibt es einen Pro unter euch der das Rätsel knacken kann??
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The historical returns on a balanced portfolio have had an average return of 6% and a standard deviation of 8%. Assume that returns on this portfolio follow a normal distribution. Use the empirical rule to answer the following questions.
a. What percentage of returns were greater than 22%? (Round your answer to 2 decimal places.)
Percentage of returns %
b. What percentage of returns were below −18%? (Round your answer to 2 decimal places.)
Percentage of returns %
Viel Grüße aus Bayern,
Herbert
