Firm a Sells Lemonade and Firm B Sells Hot Chocolate

question 1

Multiple Choice

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.

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Definitions:

Bladder Scan

A non-invasive ultrasound procedure used to estimate the volume of urine in the bladder.

Indwelling Catheter

A tube inserted into a body cavity, such as the bladder, to allow for the continuous discharge of fluid.

Urinary Drainage

The process or device used to facilitate the removal of urine from the bladder.

External Catheter

A catheter that is placed outside the body, often used to drain urine from the bladder without entering the urethra.