| Tag | Value |
|---|---|
| file | Descriptive-statistics_vufsw-proportion-1096-en_vufsw-proportion-1096-en |
| name | vufsw-proportion-1096-en |
| section | descriptive statistics/summary statistics/proportion |
| type | schoice |
| solution | TRUE, FALSE, FALSE, FALSE, FALSE |
| Type | calculation |
| Program | calculator |
| Language | English |
| Level | statistical thinking |
The individual weight of 500 males is normally distributed with a mean of 78 kg and a standard deviation of 6 kg. What is the percentage of males with a weight between 72 and 88 kg?
The empirical rule is a statistical rule which states that for a normal distribution, almost all data will fall within three standard deviations of the mean. Broken down, the empirical rule shows that 68% will fall within the first standard deviation, 95% within the first two standard deviations, and 99.7% will fall within the first three standard deviations of the distribution’s average.