Question

FreshmenSeniors464Below, the two-way table is given for aclass of students.Sophomore JuniorsTotalMale2 2Female 36 3TotalIf a student is selected at random, find theprobability the student is a female given that it'sa junior. Round to the nearest whole percent.[?]%

Answer 1

Let:

A = Select a female

B = Select a Junior

so:

`P(A|B)=(P(A\cap B))/(P(B))=(3)/(4)=0.75`

Answer:

75%