V*n
2 楼
证明
http://www.lagriffedulion.f2s.com/math.htm
计算依据的实验数据：
“Project Talent1 study of 1960. It remains one of the best assessments of
cognitive sex differences in a complete age group ever made. The sample was
designed to be representative of all 15 year-olds in the US. It included
more than 73,000 15 year-olds, both students and nonstudents. They were
given an all-day battery of 23 cognitive tests. The mathematics results
revealed a mean (male-female) difference of 0.12 standard deviations2 and a
1.20 (male/female) variance ratio”
http://www.lagriffedulion.f2s.com/math.htm
计算依据的实验数据：
“Project Talent1 study of 1960. It remains one of the best assessments of
cognitive sex differences in a complete age group ever made. The sample was
designed to be representative of all 15 year-olds in the US. It included
more than 73,000 15 year-olds, both students and nonstudents. They were
given an all-day battery of 23 cognitive tests. The mathematics results
revealed a mean (male-female) difference of 0.12 standard deviations2 and a
1.20 (male/female) variance ratio”
c*g
3 楼
什么意思？找到BYTE(8个bit)中为1的bit的position？还是找有多少个为1？
c*e
4 楼
我不知道什么意思，所以来请教。
【在 c*******g 的大作中提到】
: 什么意思？找到BYTE(8个bit)中为1的bit的position？还是找有多少个为1？
【在 c*******g 的大作中提到】
: 什么意思？找到BYTE(8个bit)中为1的bit的position？还是找有多少个为1？
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