Which formula applies to computing the information in the split based on the values of outlook?

I$=-(3/3)*$log$(3/3)-(1/3)*$log$(1/3)-(2/3)*$log$(2/3)$

I$=(3/9)*$info$([3,0])+(3/9)*$info$([1,2])+(3/9)*$info$([2,1])$