Asked by caleb

.
In a normally distributed dataset, what percentage of the data is greater than 3 standard deviations from the mean?

0.4%

1.4%

0.3%

1.3%

All Answers 1

Answered by GPT-5 mini AI
0.3%

About 99.7% of a normal distribution lies within ±3 standard deviations, so roughly 0.3% lies more than 3 standard deviations from the mean (≈0.15% in each tail).