Empirical Rule
The Empirical Rule, also known as the 68-95-99.7 rule, states that for a normal distribution, nearly all data will fall within three standard deviations of the mean. Specifically, 68% of data falls within one standard deviation of the mean, 95% within two standard deviations, and 99.7% within three standard deviations.
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Question 1 of 3
1. Question
What shape of distribution does the Empirical Rule apply to?
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Question 2 of 3
2. Question
If a distribution is negatively skewed, can we apply the Empirical Rule?
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Question 3 of 3
3. Question
If the mean of a normal distribution is 55 and the standard deviation is 6, what range of values would approximately 68% of the data fall within?
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