Solve the Problem. -Scores on a Test Are Approximately Normally Distributed with a Distributed

question 109

Multiple Choice

Solve the problem.
-Scores on a test are approximately normally distributed with a mean of 70 and a standard deviation of 9. The teacher wants to give A's to the top 10% of students and B's to the next 23%. What is the
Bottom cutoff for a B grade? Round your answer to the nearest whole number.

• A)71
• B)74
• C)66
• D)76

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An unexpected or astonishing event, fact, or thing that takes someone unawares.

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Describes statements or terms that are unclear or have multiple interpretations, often leading to confusion or misunderstanding.