Question 1192878
--------M--------F--------total
IS----45--------45--------90
OS---15--------30--------45
Total. 60--------75-------135
a. 75/135=0.556
b. 15/60=0.250
c. 30/74 or 0.400 These two were given
d. 45/135=1/3=0.333
e.30/45=2/3-0.667