Expression 5: normal distribution left parenthesis, "m" , "s" , right parenthesis is distribution. Has graph. To audio trace, press ALT+T.normaldistm,s
MeanStandard Deviation
5
Expression 6: normal distribution left parenthesis, 0 , 1 , right parenthesis is distribution. Has graph. To audio trace, press ALT+T.normaldist0,1
MeanStandard Deviation
6
Expression 7: "z" Subscript, "a" , Baseline equals StartFraction, left parenthesis, "a" minus "m" , right parenthesis Over "s" , EndFraction equals negative 0.6 6 6 6 6 6 6 6 6 6 6 7za=a−ms
equals=
negative 0.6 6 6 6 6 6 6 6 6 6 6 7−0.666666666667
7
Expression 8: "z" Subscript, "b" , Baseline equals StartFraction, left parenthesis, "b" minus "m" , right parenthesis Over "s" , EndFraction equals 0.3 3 3 3 3 3 3 3 3 3 3 3zb=b−ms