Following are the percentages of students of State College enrolledin each of th

Question

Following are the percentages of students of State College enrolledin each of the school's main divisions. Also listed are theproportions of students in each division who are women
Division            %         %women
Humanities        40          60
Natural Science      10          15
History                   30          45
Social Science        20          75

Suppose the Registrar selects one person at random. What is theprobability that the student selected will be a male?(The answer is0.46,how can I get this answer?)

Explanation / Answer

(.4*.6)+(.1*.15)+(.3*.45)+(.2*.75)=.54 So 54% are women, there you go!

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