A Sales Firm Receives an Average of Four Calls Per

question 37

Multiple Choice

A sales firm receives an average of four calls per hour on its toll-free number. For any given hour, find the probability that it will receive exactly nine calls. Use the Poisson distribution.

• A)0.0132
• B)0.0001
• C)146.3700
• D)0.0003

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Definitions:

Ethylpropylamine

A chemical compound which is an amine derivative from ethyl and propyl groups.

Compound

A compound created by the chemical combination of two or more elements bonded together.

Boiling Point

The boiling point is the temperature at which a liquid turns into a vapor at a given pressure, characteristic for each substance.

Pure Solvent

A liquid substance that is able to dissolve other substances (solute), without any impurities or admixtures.