A Quiz Consists of 15 Multiple Choice Questions

question 81

Short Answer

A quiz consists of 15 multiple choice questions. Each question has 5 choices, with exactly one correct choice. A student, totally unprepared for the quiz, guesses on each of the 15 questions.
How many questions should the student expect to answer correctly?
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What is the standard deviation of the number of questions answered correctly?
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If at least 9 questions must be answered correctly to pass the quiz, what is the chance the student passes?
______________

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Definitions:

Top Management

The highest level of managerial staff, responsible for the overall direction and strategies of an organization.

Targeted Recruitment

A recruitment strategy that involves focusing efforts on specific demographics or individuals with particular skills or experiences, to fulfill the specific needs of the organization.

Leadership Qualities

The set of characteristics, traits, and skills that are considered desirable in an individual who directs, motivates, and guides others towards achieving common goals.

Trustworthiness

The quality of being reliable, honest, and deserving of trust.