Question

Use ONLY the Empirical (68-95-99.7) Rule to answer the following question. A 100 point exam was given. David's score on the exam was at the 97.5th percentile. Assuming that all scores for the exam were normally distributed with a mean of 82 and a standard deviation of 3, what was David's exam score? Report your answer as a whole number (i.e. if your answer is 80.78%, report 81)

          Use ONLY the Empirical (68-95-99.7) Rule to answer the following question.
A 100 point exam was given. David's score on the exam was at the 97.5th percentile. Assuming that
all scores for the exam were normally distributed with a mean of 82 and a standard deviation of 3,
what was David's exam score? Report your answer as a whole number (i.e. if your answer is
80.78%, report 81)

Use ONLY the Empirical (68-95-99.7) Rule to answer the following question.
A 100 point exam was given. David's score on the exam was at the 97.5th percentile. Assuming that
all scores for the exam were normally distributed with a mean of 82 and a standard deviation of 3,
what was David's exam score? Report your answer as a whole number (i.e. if your answer is
80.78%, report 81)

Added by Chris R.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Jason Horton

Step 1

7 rule, states that for a normal distribution: - Approximately 68% of the data falls within one standard deviation of the mean. - Approximately 95% of the data falls within two standard deviations of the mean. - Approximately 99.7% of the data falls within three Show more…

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Use ONLY the Empirical (68-95-99.7) Rule to answer the following question: A 100 point exam was given. David's score on the exam was at the 97th percentile. Assuming that all scores for the exam were normally distributed with a mean of 82 and a standard deviation of 3, what was David's exam score? Report your answer as a whole number (i.e: if your answer is 80.78%, report 81).