表达式4: "f" left parenthesis, "p" , right parenthesis equals "p" Superscript, "W" , Baseline left parenthesis, 1 minus "p" , right parenthesis Superscript, "L" , Baseline left brace, 0 less than or equal to "p" less than or equal to 1 , right bracefp=pW1−pL0≤p≤1
4
表达式5: Start integral from 0 to 1, end integral, "f" left parenthesis, "p" , right parenthesis "d" "p"∫10fpdp
equals=
0.3 3 3 3 3 3 3 3 3 3 3 30.333333333333
5
表达式6: "C" equals StartFraction, left parenthesis, "W" plus "L" plus 1 , right parenthesis ! Over "W" ! "L" ! , EndFractionC=W+L+1!W!L!
equals=
33
6
表达式7: "n" left parenthesis, "p" , right parenthesis equals "C" "p" Superscript, "W" , Baseline left parenthesis, 1 minus "p" , right parenthesis Superscript, "L" , Baseline left brace, 0 less than or equal to "p" less than or equal to 1 , right bracenp=CpW1−pL0≤p≤1
7
表达式8: Start integral from 0 to 1, end integral, "n" left parenthesis, "p" , right parenthesis "d" "p"∫10npdp
