The Weekly Earnings of Bus Drivers Are Normally Distributed with a Mean

question 48

Short Answer

The weekly earnings of bus drivers are normally distributed with a mean of $395. If only 1.1 percent of the bus drivers have a weekly income of more than $429.35, what is the value of the standard deviation of the weekly earnings of the bus drivers?

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Definitions:

Fovea

A small depression in the retina of the eye where visual acuity is highest. This area is responsible for sharp central vision.

Fine Detail

The most intricate or nuanced aspects of something, usually requiring close attention or scrutiny to fully appreciate or understand.

Color-deficient Vision

A condition impairing the ability to see color differences, commonly referred to as color blindness.

Trichromatic

Pertains to the trichromatic theory of color vision, which states that the human eye has three types of receptors that are sensitive to red, blue, and green light.