A focus group is currently made up of x men and y women. If 3 men and 7 women are added to the group, and if one person is selected at random from the larger focus group, then what is the probability that a woman is selected?
Select the correct option: A) x/(x + 7) B) y/(x + y) C) (y + 3)/(x + y + 7) D) (y + 7)/(x + y + 10) E) (x + 3)/(x + y + 10)
x men   y women   x+3+y+7 is the total   =x+y+10   y+7 is the number of men   so (y + 7)/(x + y + 10)   D. (y + 7)/(x + y + 10)
<result>D</result>
A focus group is currently made up of x men and y women. If 3 men and 7 women are added to the group, and if one person is selected at random from the larger focus group, then what is the probability that a woman is selected?