A Statistic Professor Finds She Averages Five E-Mail Messages Per

question 50

Multiple Choice

A statistic professor finds she averages 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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