Question 809210
.4 are male; .6 are female
.
a).6
.
b)
.4*.8+.6*.4
=.32+.24
=.56
.
c).32/.56 = 4/7
.
d)
1-.56=.44 students not taking engineering.
.6 females not taking engineering*.6 student body=.36
.4*.2=.08 male not taking engineering.
.36+.08=.44
.36/.44=9/11
.
Ed