Compute the Mean and Standard Deviation of a Binomial Random

question 52

Multiple Choice

Compute the Mean and Standard Deviation of a Binomial Random Variable
-A quiz consists of 20 multiple choice questions, each with five possible answers, only one of which is correct. Find the mean and the standard deviation of the number of correct answers.

• A) mean: 4; standard deviation: 1.78885438
• B) mean: 4; standard deviation: 2
• C) mean: 10; standard deviation: 1.78885438
• D) mean: 10; standard deviation: 3.16227766

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Definitions:

Marketing Research

The systematic gathering, recording, and analysis of data about issues relating to marketing products and services.

Prospective Customers

People or organizations that might buy a product or service but haven't purchased anything so far.

Survey Method

A research technique that involves the collection of data from a pre-defined group of respondents by means of a questionnaire or interview to gather information and insights on various topics.

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