There are 100 students in a class, 60 male (M) and 40 female (F). Of the male students, 15 are from Baris (A) and of the female students, 10 are from Baris (A). What is P(A)=?

Answer 1

15/100 = 25%

15 + 10=25. 25/100 = 0.25 =25% = Pr(A)

or 15/60 = .25

and 10/40 = .25

Pr(A/G) = .25

Pr(A/B) =.25

Pr(A) = .25 = 25%