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According to the Empirical Rule,the Percentage of Observations in a Data

Question 23

Multiple Choice

According to the Empirical Rule,the percentage of observations in a data set (providing that the data set has a bell-shaped and symmetric distribution) that should fall within two standard deviations of their mean is approximately:


A) 90%
B) 95%
C) 97.5%
D) 100%

Correct Answer:

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