grade 12 · STAT2-002

Use a normal-distribution benchmark

Connect one, two, and three standard deviations with the empirical-rule proportions.

Learn togetherFresh problem · seed 111023227

For an approximately normal distribution, what percentage lies within 3 standard deviations of the mean?

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Work through one checkpoint at a time. Your answer area opens after the reasoning.

about 99.7%exactly 50%about 68%about 95%