Standard deviation is calculated in the same units as the original measurements, while variance is calculated in units squared.
A: 正确
B: 错误
A: 正确
B: 错误
举一反三
- Standard deviation is calculated in the same units as the original measurements, while variance is calculated in units squared. A: 正确 B: 错误
- The standard error of estimate is based on:? squared deviations from the regression line.|negative values.|squared units of the independent variable.|the regression mean square error.
- Suppose X is a normal random variable with mean 60 and standard deviation 2. A z-score was calculated for a number, and the z-score is 3.4. What is x?
- Exchange Difference is：（ ） A: The difference between two different currencies. B: The difference calculated from reporting the same number of units of a foreign currency, in the presentation currency, at different exchange rates. C: The average difference between the exchange rate at the beginning and end of a period.
- 中国大学MOOC: Qin Shi Huang unified China economically by standardizing the units of measurements such as .