A Set of Final Examination Grades in a Calculus Course

question 143

Multiple Choice

A set of final examination grades in a calculus course was found to be normally distributed with a mean of 69 and a standard deviation of 9.What is the probability of getting a grade of 91 or less on this exam?

• A)1.00
• B)0.50
• C)0.0073
• D).9927

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Definitions:

Recirculating Ball

A type of steering system mechanism that utilizes a series of balls to reduce friction and provide smoother steering control.

Belt-driven

Describes mechanisms or devices powered by a belt, which transfers movement and power from one pulley to another.

Pump

A mechanical device used to move fluids or gases from one place to another by creating pressure differential.

Steering Wheel

The component of a vehicle that the driver uses to control the direction of the vehicle by turning it in the desired direction.