A Catalog Company That Receives the Majority of Its Orders

question 138

Multiple Choice

A catalog company that receives the majority of its orders by telephone conducted a study to determine how long customers were willing to wait on hold before ordering a product.The length of waiting time was found to be a variable best approximated by an exponential distribution with a mean length of waiting time equal to 2.8 minutes (i.e.the mean number of calls answered in a minute is ) .What is the probability that a randomly selected caller is placed on hold fewer than 7 minutes?

• A)0.0009119
• B)0.082085
• C)0.917915
• D)0.9990881

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Definitions:

Facial Nerve

The seventh cranial nerve, responsible for controlling most of the muscles of facial expression and conveying taste sensations from the anterior two-thirds of the tongue.

Oculomotor Nerve

The third cranial nerve, controlling most eye movements, the response of pupils to light, and the eyelids.

Pupil Size

The diameter of the pupil, which changes in response to light intensity and certain emotional states to regulate the amount of light entering the eye.

Adjusts

Modifies or alters something in order to achieve accuracy or maintain optimal functionality.