10 of all employees work in the finishing department 20 of a

10% of all employees work in the finishing department; 20% of all plant employees are absent excessively; & 7% of all plant employees wor in the finishing department 7 are absent excessively. What are the probability that a randomly selected employee is absent excessively if it is known that they work in the finishing department?

A) .35   B) .77 C) .13    D) .70

Solution

20% are absent excessively. Now we have to find the probability that a randomly selected employee is absent excessively if it is known that they work in the finishing department so it will be less than 0.20

So intuitively we can do this C) 0.13