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Title: Help me solve and understand this math problem Post by: BTC_GHD on December 09, 2013, 02:16:42 AM Could someone show me how to solve this also include an answer! I'm looking to learn not just mooch
Problem: - At a certain non-profit organization, 60% of employees are college graduates and 36% of employees have more than ten years of experience. If 68% of the organization's employees are either college graduates or have more than ten years of experience (or both), what is the probability that a randomly selected employee will have more than ten years of experience and be a college graduate? - Title: Re: Help me solve and understand this math problem Post by: Frogcoin on December 09, 2013, 03:47:31 AM Set theory:
Let the college grads be group A and the experienced employees be group B. A is 60% of the population, B is 36% of the population, and A U B (union of A and B) is 68%. We want to know the size of A ∩ B (intersection of A and B -- that is the group of college grads with 10 yrs experience). Now A U B = A + B - A ∩ B so A ∩ B = .6 + .36 - .68 = 0.28. Therefore the probability is 28%. Title: Re: Help me solve and understand this math problem Post by: Haidang1796 on December 09, 2013, 11:20:30 PM Set theory: This seems legitLet the college grads be group A and the experienced employees be group B. A is 60% of the population, B is 36% of the population, and A U B (union of A and B) is 68%. We want to know the size of A ∩ B (intersection of A and B -- that is the group of college grads with 10 yrs experience). Now A U B = A + B - A ∩ B so A ∩ B = .6 + .36 - .68 = 0.28. Therefore the probability is 28%. Title: Re: Help me solve and understand this math problem Post by: b!z on May 08, 2014, 03:06:47 AM It's impossible to know, either frogcoin is joking or trying to sound intelligent. What makes you think it's impossible? |