A Multiple-Choice Test Has 45 Questions and 5 Choices for Each

question 40

Multiple Choice

A multiple-choice test has 45 questions and 5 choices for each question. If a student is totally unprepared and guesses on each question, how many questions can she expect to answer correctly, and what is the standard deviation of the number of correct answers? Round any estimated quantities to two decimal places. ​

• A) ​
• B) ​
• C) ​
• D) ​
• E) ​

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Definitions:

Cohesiveness

The extent to which members of a group or team are mutually attracted and motivated to stay together and achieve common goals.

Storming Stage

The second phase in group development, characterized by conflict and competition as team members start to express their individual personalities and resist the group's influence.

Infighting

Internal conflict or rivalry among members within the same organization or group, leading to reduced cohesion and effectiveness.

Coalitions

Alliances between distinct parties, organizations, or countries for a common purpose, often temporary.