A Statistics Professor Receives an Average of Five E-Mail Messages

question 17

Multiple Choice

A statistics professor receives an average of five e-mail messages per day from students. Assume the number of messages approximates a Poisson distribution.
-What is the probability that on a randomly selected day she will have no messages?

• A)0.0067
• B)Zero
• C)0.0335
• D)Impossible to have no messages

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Definitions:

Annuity

A monetary product designed to deliver regular payouts, mainly aimed at funding retirees' income needs.

Compounded Monthly

A compound interest calculation method where interest is added to the principal balance each month.

RRSP

Registered Retirement Savings Plan, a Canadian financial vehicle for individuals to save for retirement on a tax-sheltered basis.

Nominal Rate

The advertised or stated interest rate on a loan or investment, not accounting for any fees or compounding of interest.