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
parameter
B: A
statistic
C: S
D: CV
E: σ
A: A
parameter
B: A
statistic
C: S
D: CV
E: σ
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
- 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
- —How many students are there in your school?—There are 2,000 students here [u] [/u] . 未知类型：{'label': 'questionDesc', 'content': '请选择正确答案。', 'isMemberControl': 0, 'type': 181} A: first of all B: in all C: after all D: at all
- You ask five of your classmates about their height. On the basis of this information, you state that the average height of all students in your university or college is 170 cm. This is an example of:
- How many students ______ there in your school? A: is B: are C: have D: has