Apprentice Journeyman Master Plumbers 25 | 20 I 30 Electricians 15 I 40 I 20 A member of the union is selected at random. Given that the person selected is a plumber, the probability that he is a journeyman is: Your answer: O 1/2 O 1/3 O 4/15 O 2/15

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Question 13
Read and solve the problem; choose the best answer(s) from the choices provided.
A local trade union consists of plumbers and electricians. Classified according to rank:
Apprentice Journeyman Master
Plumbers 25 I 20 I
30
Electricians 15 I
40
20
A member of the union is selected at random.
Given that the person selected is a plumber, the probability that he is a journeyman is:
Your answer:
1/2
1/3
4/15
2/15
Transcribed Image Text:Question 13 Read and solve the problem; choose the best answer(s) from the choices provided. A local trade union consists of plumbers and electricians. Classified according to rank: Apprentice Journeyman Master Plumbers 25 I 20 I 30 Electricians 15 I 40 20 A member of the union is selected at random. Given that the person selected is a plumber, the probability that he is a journeyman is: Your answer: 1/2 1/3 4/15 2/15
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