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

question 1

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 two messages?

• A)0.0067
• B)0.0014
• C)0.4200
• D)0.0842

---

Definitions:

Liverworts

Simple, non-vascular plants belonging to the division Marchantiophyta, found in moist, shady environments and playing roles in ecosystems as pioneer species.

Sago Palms

Tropical plants of the genus Cycas, known for their large compound leaves and the production of sago, a starch extracted from their trunks.

Tree Ferns

Ancient group of plants with large leaves and a trunk resembling a tree, thriving mostly in tropical and subtropical regions.

Cycads

Slow-growing, palm-like plants from the order Cycadales, known for their large compound leaves and production of cones.