Answer:
Option B. 0.71
Step-by-step explanation:
There are 200 males and 300 female employees in the company.
The percentage of its employees are given who stayed for at least 1, 2 and 3 years.
          1 year      2 years      3 years
Male        0.67        0.45       0.20
Female     0.73        0.64        0.39
Number of male employees who stayed at least one year = 0.67 × 200
                                                 = 134
Number of female employees who stayed at least 1 year = 0.73 × 300
                                                = 219
Total employees who stayed at least 1 year = 134 + 219 = 353
Total employees in the company = 200 (males) + 300 (females)
                            = 500 employees
Probability that an employee stayed for at least one year = [tex]\frac{353}{500}[/tex]
                                   = 0.706 ≈ 0.71
Option B 0.71 is the answer.
