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:

Privileged Cultural Groups

Communities or societal factions that are afforded unearned advantages or preferential treatment based on certain cultural attributes.

Abusive Husbands

Men who engage in behaviors that inflict physical, emotional, or psychological harm on their spouses.

Married Women

Women who are legally united in marriage to a spouse, which may influence aspects of their social, legal, and personal lives.

Unmarried Women

Women who are not legally married; the term can include those who are single, divorced, or widowed.