A Population of Scores Is Normally Distributed with a Mean

question 19

Multiple Choice

A population of scores is normally distributed with a mean of 100 and a standard deviation of 20. Approximately percent of the scores fall in the interval between 80 and 100.

• A)14
• B)34
• C)68
• D)84

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Definitions:

ECU or ECM

Stands for Electronic Control Unit or Engine Control Module, a type of computer in vehicles that controls engine functions to ensure optimal performance.

Counts of Resolution

A measure of the smallest movement or change in position that a sensor or device can detect.

DMM Probes

Tools used with a digital multimeter to make physical contact with the component or circuit being measured.

Rubber Insulator

A component made of rubber used to electrically isolate two parts of a structure, preventing unwanted electrical conduction.