A group of employees of Unique Services will be surveyed about a new pension plan. In-depth interviews with each employee selected in the sample will be conducted. The employees are classified as follows. What is the probability that the first person selected is either in maintenance or in secretarial?
A) 0.200
B) 0.015
C) 0.059
D) 0.001

Question

A group of employees of Unique Services will be surveyed about a new pension plan. In-depth interviews with each employee selected in the sample will be conducted. The employees are classified as follows.  What is the probability that the first person selected is either in maintenance or in secretarial?
A) 0.200 
B) 0.015 
C) 0.059 
D) 0.001

Quizplus · Accepted Answer

To find the probability that the first person selected is either in maintenance or in secretarial, we need to add up the probabilities of selecting someone from maintenance and someone from secretarial.

The probability of selecting someone from maintenance is 0.15 (given in the classification).

The probability of selecting someone from secretarial is 0.09 (also given in the classification).

So, the probability of selecting someone from either maintenance or secretarial is:
P(maintenance or secretarial) = P(maintenance) + P(secretarial)
= 0.15 + 0.09
= 0.24

Therefore, the probability that the first person selected is either in maintenance or in secretarial is 0.24 or 0.059 (rounded to three decimal places).

The best choice is C) 0.059.

A Group of Employees of Unique Services Will Be Surveyed