表达式9: "s" Subscript, "p" , Baseline equals StartRoot, StartFraction, total left parenthesis, left parenthesis, "v" minus "m" , right parenthesis squared "f" , right parenthesis Over total left parenthesis, "f" , right parenthesis , EndFraction , EndRootsp=totalv−m2ftotalf
equals=
1.1 7 7 2 0 1 1 1 6 6 91.17720111669
9
表达式10: "m" minus "s" Subscript, "p" , Baseline less than "x" less than "m" plus "s" Subscript, "p" , Baselinem−sp<x<m+sp
10
sample standard deviation
11
表达式12: "s" equals StartRoot, StartFraction, total left parenthesis, left parenthesis, "v" minus "m" , right parenthesis squared "f" , right parenthesis Over total left parenthesis, "f" , right parenthesis minus 1 , EndFraction , EndRoots=totalv−m2ftotalf−1
equals=
1.2 1 1 3 2 9 9 5 5 6 41.21132995564
12
表达式13: "m" minus "s" less than "x" less than "m" plus "s"m−s<x<m+s
