In a normal distribution, about 95% of the data lies within _______ standard deviations of the mean.
- Four
- One
- Three
- Two
According to the empirical rule (also known as the 68-95-99.7 rule), in a normal distribution, about 68% of the data lies within one standard deviation of the mean, about 95% lies within two standard deviations, and about 99.7% lies within three standard deviations.
Loading...
Related Quiz
- Why is interval estimation generally preferred over point estimation?
- What is the purpose of an F-test in multiple linear regression?
- How does the Mann-Whitney U test compare to the Wilcoxon rank-sum test?
- How can the effects of interaction be investigated in a two-way ANOVA?
- In what situations is the coefficient of variation a better measure of dispersion than the standard deviation?