Please help fast. Sets and Venn Diagrams:

Consider the following sets.
U = {all triangles}

E = {x|x E U and x is equilateral}
I = {x|x E U and x is isosceles}
S = {x|x E U and x is scalene}
A = {x|x E U and x is acute}
O = {x|x E U and x is obtuse}
R = {x|x E U and x is right}
Which is a subset of I? lI
Please explain why simply.

The accompanying table shows the numbers of male and female students in a particular country who received bachelor's degrees in business in a recent year. complete parts (a) and (b) below. business degrees nonbusiness degrees total male 189131 634650 823781 female 169539 885329 1054868 total 358670 1519979 1878649 (a) find the probability that a randomly selected student is male, given that the student received a business degree. the probability that a randomly selected student is male, given that the student received a business degree, is nothing. (round to three decimal places as needed.) (b) find the probability that a randomly selected student received a business degree, given that the student is female. the probability that a randomly selected student received a business degree, given that the student is female, is nothing. (round to three decimal places as needed.)