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A Quiz Consists of 15 Multiple-Choice Questions

question 44

Essay

A quiz consists of 15 multiple-choice questions. Each question has five choices, with exactly one correct choice. A student, totally unprepared for the quiz, guesses on each of the 15 questions.
a. How many questions should the student expect to answer correctly?
b. What is the standard deviation of the number of questions answered correctly?
c. If at least nine questions must be answered correctly to pass the quiz, what is the chance the student passes?


Definitions:

Fill Orders

The process of completing customer orders by preparing and shipping the requested products.

Throughput Time

The total time required to produce a product from start to finish, including processing, inspection, and delivery times.

Fill Orders

The process of completing customer orders by preparing and dispatching the requested goods.

Manufacturing Cycle Efficiency

A metric that measures the effectiveness of a manufacturing process, focusing on the ratio of productive time to total cycle time.

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