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Michael Terrell
on Oct 14, 2024

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Firm A sells lemonade and firm B sells hot chocolate.If you invest $100 if firm A, in one year you will get back $(30  T) where T is the average temperature (Fahrenheit) during the summer.If you invest $100 in firm B, in one year you will get back $(150  T) , where T is the average temperature during the summer.The expected value of T is 70 and the standard deviation of T is 10.If you invest $50 in firm A and $50 in firm B, what is the standard deviation of your return on your investment?

A) 10
B) 20
C) 5
D) 0
E) None of the above.

Average Temperature

The mean value of temperature taken over a specified period of time.

Standard Deviation

A statistical measure that quantifies the variation or dispersion of a set of data points or values from their mean (average).

Expected Value

The weighted average of all possible values of a random variable, with weights being their probabilities.

  • Ascertain the projected income and standard risk measure of a portfolio.
  • Investigate how the correlation among asset returns influences the variability in a portfolio's value.
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Zarnaz ZandiOct 17, 2024
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