SOLUTION: Of 100 persons in a company, 70 r married, 80 r college graduates, and 60 r both married and college graduates. Find the probability that if a person is selected at random from thi
Algebra ->
Probability-and-statistics
-> SOLUTION: Of 100 persons in a company, 70 r married, 80 r college graduates, and 60 r both married and college graduates. Find the probability that if a person is selected at random from thi
Log On
Question 1103722: Of 100 persons in a company, 70 r married, 80 r college graduates, and 60 r both married and college graduates. Find the probability that if a person is selected at random from this group, the person will be;
A. Married or not a college grad
B. Married and a college grad
C. Married and not a college grad Answer by ikleyn(52780) (Show Source):
You can put this solution on YOUR website! .
Of 100 persons in a company, 70 r married, 80 r college graduates, and 60 are both married and college graduates.
Find the probability that if a person is selected at random from this group, the person will be:
a. Married or not a college graduate.... Their number = n(Married) + n(NOT_college_graduated) - n(Married_AND_college_graduated) =
= 70 + (100-80) - 60 = 70 + 20 - 60 = 30.
So the probability is = = 0.3 = 30%.
b. Married and a college graduate.... Their number is 60. The probability is = = 0.6 = 60%.
c. Married and not a college graduate. Their number is 70-60 = 10. The probability is = = 0.1 = 10%.
