The university

At a certain university, 25% of students are in the business faculty. Of the students in the business faculty, 66% are males. However, only 52% of all students at the university are male.

a. What is the probability that a student selected at random in the university is a male in the business faculty?
b. What is the probability that a student selected at random in the university is male or is in the business faculty?
c. What percentage of males are in the business faculty?

Correct result:

a =  16.5 %
b =  74.5 %
c =  66 %

Solution:

a=100 25100 66100=332=332%=16.5%
f=166/100=1750=0.34 b=125/100=1492=74.5  n=f b=0.34 74.5=51200=0.255 b=100 (1n)=100 (10.255)=1492=1492%=74.5%
c=66=66%



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Showing 1 comment:
#
Math student
Question C) seems a bit misleading as one might think that it requires the percentage that male business students make up of the whole male population of students at the university.

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