Suppose a Stat 1450 web class has 15 males (8 are also students at OSU) and 12 females (7 are also students at OSU). What is the probability that a randomly selected student is either female, or also a student at OSU? Submit answer in decimal form and round to the nearest thousandths place.

Answer 1

what does "or also" mean?

Answer 2

I have the same question but perhaps I I list the four categories that the 27 students fit into you can figure it out yourself:

a) 7 males (not student)

b) 8 male students

c) 7 female students

d) 5 females (not student)

so males not student = 7/27
male students = 8/27
female students = 7/27
females not student = 5/27

Answer 3

So if you criterion is that any student counts plus any female student or not then it is
(8 + 7 + 5)/27