Estimate the Indicated Probability by Using the Normal Distribution as an Approximation

question 55

Multiple Choice

Estimate the indicated probability by using the normal distribution as an approximation to the binomial distribution.
-A multiple choice test consists of 60 questions. Each question has 4 possible answers of which one is correct. If all answers are random guesses, estimate the probability of getting at least 20% correct.

• A) 0.3508
• B) 0.1492
• C) 0.8508
• D) 0.0901

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Definitions:

Indirect Approach

A communication strategy that presents supporting details first, leading up to the main point or request, often used to soften the impact of negative news.

Main Idea

The central or most important thought, concept, or argument that is being conveyed in a text or discourse.

Request For Action

A directive or plea issued to prompt someone to take a specific action or make a decision.

Expression Of Appreciation

A statement or gesture showing gratitude or acknowledgment of others' efforts or achievements.