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:

Health Problems

Physical or psychological conditions that affect an individual's wellbeing and ability to perform daily activities.

Mortality

The condition of being susceptible to death or the occurrence of fatalities within a group of people.

Education

The process of facilitating learning, or the acquisition of knowledge, skills, values, beliefs, and habits through various means such as teaching, training, storytelling, discussion, and research.

Black Death

The devastating global epidemic of bubonic plague that struck Europe and Asia in the mid-14th century, killing millions of people and significantly impacting the course of history.