SOLUTION: In an electrical firm, 75% of the employees are Bumiputras. Of the Bumiputras, 20% have graduate training, 50% have college training and others have only hig

Question 1172487: In an electrical firm, 75% of the employees are Bumiputras. Of the Bumiputras, 20% have graduate training, 50% have college training and others have only high school training. Of non-bumiputras, 40% have graduate training, 20% have college training and others have high school training.
i)Draw a tree diagram to represent the above situation
ii)If an employee is selected at random, what is the probability that he has college training?
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Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!



Hi  



	0.75				0.25	

0.20	0.50	0.30		0.40	0.20	0.40

Grad  C0llege  Other	 Grad C0llege  Other

ii)If an employee is selected at random, what is the probability that he has college training?

Independ3ent Events

P = 

iii)Given that the employee selected has graduate training, what is the probability  that he is a Bumiputra.

P(A|B) = P(A and B)/P(B) Bayes Theorem

P =(Bumiputra|graduate) = P(BOTH)/P(grad) =  

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