P is the probability a value from this distribution lies between a & b. za and zb represent the z-scores of a & b.
7
Expression 8: "P" equals 0.8 6 2 1 8 0 1 9 7 8 3P
equals=
0.8 6 2 1 8 0 1 9 7 8 30.86218019783
8
Expression 9: "z" Subscript, "a" , Baseline equals StartFraction, left parenthesis, "a" minus "m" , right parenthesis Over "s" , EndFraction equals negative 1.2za=a−ms
equals=
negative 1.2−1.2
9
Expression 10: "z" Subscript, "b" , Baseline equals StartFraction, left parenthesis, "b" minus "m" , right parenthesis Over "s" , EndFraction equals 2zb=b−ms