AP Statistics MCQ AP Statistics A fire department in a rural county reports that its response time to fires is approximately Normally distributed with a mean of 22 minutes and a standard deviation if 11.9 minutes. Approximately what proportion of their response time is over 20 minutes?

A fire department in a rural county reports that its response time to fires is approximately Normally distributed with a mean of 22 minutes and a standard deviation if 11.9 minutes. Approximately what proportion of their response time is over 20 minutes?

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A fire department in a rural county reports that its response time to fires is approximately Normally distributed with a mean of 22 minutes and a standard deviation if 11.9 minutes. Approximately what proportion of their response time is over 20 minutes?

A. 0.03
B. 0.21
C. 0.25
D. 0.75
E. 0.79

Answer: C

AP Statistics MCQ

A fire department in a rural county reports that its response time to fires is approximately Normally distributed with a mean of 22 minutes and a standard deviation if 11.9 minutes. Approximately what proportion of their response time is over 20 minutes?

A fire department in a rural county reports that its response time to fires is approximately Normally distributed with a mean of 22 minutes and a standard deviation if 11.9 minutes. Approximately what proportion of their response time is over 20 minutes?

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