Judging from Recent Experience, 5 Percent of the Computer Keyboards

question 34

Multiple Choice

Judging from recent experience, 5 percent of the computer keyboards produced by an automatic,
High-speed machine are defective. If six keyboards are randomly selected, what is the probability
That more than 3 of the keyboards are defective?

• A) 0.167
• B) 0.0001
• C) 0.0000
• D) 1.00
• E) 0.2321

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Definitions:

Encoders

Devices that convert motion or position into an electrical signal, often used for feedback in control systems.

Precisely Determined

Accurately established or calculated with precision, leaving no ambiguity about the result or outcome.

Servo Motors

Motors equipped with feedback systems to control the position, velocity, or torque of the motor with high precision.

Open Loop

A system that has no feedback or auto correction.