1995-2000年福建省汉族城市男生近视率的走势分析     

陈海春 《福建体育科技》2004,23(4):14-15,22

将2000年与1995年福建省汉族城市男生近视检出率进行纵向对比,结果发现小学初期与高中阶段的男生近视发生率显著上升,应引起学校、家长的高度重视。  相似文献   

Sampling Errors in Political Polls     

Zbigniew Kmietowicz 《Teaching Statistics》1994,16(3):70-74

This article examines the sampling error of the lead of one political party over another as observed in a random sample of voters. The sample size needed to achieve a certain precision is also investigated.  相似文献   

Useful Data for Teaching Statistics from Hockey World Cup Matches     

C. P. Cholkar  M. N. Deshpande 《Teaching Statistics》2004,26(1):20-21

This article presents some data from a major sports event that can be used in common statistical analyses.  相似文献