500 employees of your company are listed by age and their score on computer proficiency test:

	Test Scores
Age	150<	150-169	170-199	>200	Total
20-29	10	25	30	65	130
30-39	16	20	55	45	136
40-49	15	10	32	15	72
50-59	5	10	70	40	125
>60	5	5	15	12	37
Total	51	70	202	177	500

1. What is the probability that a randomly selected employee is in 30-39 years age range and scores 170-199?
   1. 0.42
   2. 0.25
   3. 0.11
   4. 0.65

1. What is the probability that a randomly selected employee scores >= 200 or is 40 or more years old?
   1. 0.19
   2. 0.69
   3. 0.45
   4. 0.82

1. One of the employees scored in range of 150-169.What is the probability this employee is 20 to 29?
   1. 0.85
   2. 0.11
   3. 0.45
   4. 0.36