5. 100 students were randomly selected to measure the weight values to explore the weight status of students in your school. The weights of 100 students mean
A: A population
B: A sample
C: A constant
D: Nothing
E: Numerical discrete data
A: A population
B: A sample
C: A constant
D: Nothing
E: Numerical discrete data
举一反三
- 100<br/>students were randomly selected to measure the weight values to<br/>explore the weight status of students in your school.The standard<br/>deviation of 100 weight values was() A: A<br/>parameter B: A<br/>statistic C: mean D: CV E: σ
- The heights of all the students in your school were measured to explore the height status of students for your school.The mean height of all the students was() A: A<br/>parameter B: A<br/>statistic C: S D: CV E: σ
- When they were high school students,they
- For whom is A.P. course prepared for?( ) A: postgraduate students B: middle school students C: college students D: High school students
- For whom is A.P. course prepared for? A: High school students B: Middle school students C: College students D: Postgraduate students