A class of 90 students from civil, mechanical and electrical engineering backgro

Question

A class of 90 students from civil, mechanical and electrical engineering backgrounds is divided into 2 sections (sections A and B). Section A contains of 15 civil engineers and a total of 40 students. Section B contains 20 mechanical engineers. There are a total 40 engineers and 30 mechanical engineers in the class. (a) What is the probability that a randomly selected student from section A is an electrical engineer? (b) hat is the probability that a randomly selected student is a civil engineer and from section B?

Explanation / Answer

Data will be

Section A- 15 civil engineer , 10 mechanical engineer, 15 electrical engineer

Section B-20 mechanical engineer, 25 civil engineer, 5 electrical engineer

A) so probability will be 15/40= 3/8

B) so probability will be 25/90 = 5/18

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