举一反三
- DRIs can be used as a scale to estimate the nutrient quality and quantity, also as a goal for reasonable dietary intake.
- When a range of values is used to estimate a population parameter, it is called _______. A: a point estimate B: an interval estimate C: a statistical parameter D: a range estimate
- DRIs as a scale to estimate the nutrient quality and quantity, also as a goal for reasonable dietary intake.
- When a range of values is used to estimate a population parameter, it is called _______.
- Identify the scale used for the following variable:Educational level reported as middle school, high school , undergraduate and higher _________ A: Nominal scale B: Ordinal scale
内容
- 0
The larger the level of confidence used in constructing a confidence interval estimate of the population mean, the narrower the confidence interval.
- 1
During the 19th century, gas was used on a local scale because of the difficult situation in ______.
- 2
When a speaker needs to show numbers and statistics in proportions, ratio or scale, he usually uses the expressions of “a ratio of”, “proportion of”, “ on a scale of “ etc. These expressions are used to present _______. </p> </p>
- 3
Which of the followings can be used to modify a business deal on a trivial scale ( 小本经营的、微不足道的 )?
- 4
The Rule of 70 is used to A: estimate how much of an economy's growth rate is due to increases in capital per hour of labor B: calculate the standard of living C: calculate the economy's growth rate D: estimate how long it will take the level of any variable to double