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The Ages of All High School Teachers in New York

Question 74

Multiple Choice

The ages of all high school teachers in New York state have a bell-shaped distribution with a mean of 43 years and a standard deviation of 6 years.According to the empirical rule,the percentage of teachers in this state who are 31 to 55 years old is approximately:


A) 97%
B) 94%
C) 89%
D) 95%

Correct Answer:

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