Collection and arrangement of the first volume of seventh grade mathematics. On the whole. What is an individual?

Individual: The object under investigation is called individual. (For example, if there are 44 peach trees and the weight of peaches on 5 peach trees is drawn, then the object is the weight of peaches on 5 peach trees. )

Population: the whole of the investigated object is called population. (For example, if there are 44 peach trees and five are randomly selected, then 44 peach trees are the whole. )

Senior three math problems come from 20 12. A model in Zhengzhou, Henan Province.

Qinhuai dual-mode mathematics answer

How to calculate the modulus of z

Mathematics difficulty (depth and breadth) of college entrance examination

Can I choose Chinese for the written teaching design of applying for the qualification certificate of primary school mathematics teachers?

What is the strong major of Shandong University?

Application Problems of Olympiad Mathematics in the First Grade of Primary School (50 Ways)

What do M files and inline functions in Matlab software mean? Thank you.

Mathematics in the Winter Holiday Garden of Junior One (two-way)

Elementary school math problems. High score solution. !