The average values of wingspan in this sample is cm.
举一反三
- Regarding the sample average and the population average, the following is correct ( ) A: Both are random variables B: Both are definite values C: The former is a certain value and the latter is a random variable D: The former is a random variable and the latter is a certain value
- When the sample sizes are equal, the pooled variance of the two groups is the average of the two sample variances.
- If we measure the height of everyone in our course to the nearest 0.01 cm, which of the "average" values would likely be least meaningful? A: Mean B: Median C: Mode
- 未妊娠时子宫的大小长____cm,宽____cm,厚____cm.
- In the time domain， the procedure of restoring the original continuous-time signal from discrete sample values is called_______