The employees of a company were surveyed on questions regarding their educational background and marital status. Of the 600 employees, 400 had college degrees, 100 were single, and 60 were single college graduates. What is the probability that an employee of the company is single or has a college degree?
A) 0.25
B) 0.733
C) 0.10
D) 0.667

Question

Quizplus · Accepted Answer

We can use the formula: P(A or B) = P(A) + P(B) - P(A and B)
where A is the event of being single and B is the event of having a college degree.
We know that P(A) = 100/600 = 1/6, P(B) = 400/600 = 2/3, and P(A and B) = 60/600 = 1/10.
Therefore, P(A or B) = 1/6 + 2/3 - 1/10 = 11/15 ≈ 0.733.

The Employees of a Company Were Surveyed on Questions Regarding