China Naming Network - Baby naming - Volleyball junior lottery

Volleyball junior lottery

(1) The third scheme is reasonable. The scheme adopts the method of random sampling. Random samples are representative and can be used to estimate the population, so the third scheme is reasonable.

(2) As shown:

(3) It is estimated that there are 7 boys (ten thousand) in the range of 160 cm ~ 170 cm in the seventh, eighth and ninth grades of a middle school.

上篇: What should I do if my name cannot be changed on the Kuaishou Speedy Edition Healthy China Science Promotion Certificate? 下篇: My daughter was born on the 25th day of the third lunar month in 2013, at 8:36 in the morning. My wife and I both have the surname Liu. I will now name my daughter Liu Jiayi. Please help...