alleryStart learning →The empirical rule is also known as the:
A10-20-30 rule
B68-95-99.7 rule
C50-75-90 rule
D25-50-75 rule
Answer & Solution
Correct answer: B. 68-95-99.7 rule
1. The rule states how much of a normal distribution falls within one, two and three deviations.
2. The empirical rule is also known as the 68-95-99.7 rule.
3. Each number in that name is a cumulative percentage.
4. The numbers correspond to one, two and three standard deviations respectively.
_Source: OpenStax Introductory Statistics 2e (CC BY 4.0), Ch 6 'The Normal Distribution', sections 6.1-6.3_
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