At a Texas college, 60% of the students are from the southern part of the state,

Question

At a Texas college, 60% of the students are from the southern part of the state, 30% are from the northern part of the state, and the remaining 10% are from out-of-state. All students must take and pass an Entry Level Math (ELM) test. 60% of the students from southern Texas have passed the ELM, 70% of the students from the northern part of Texas have passed the ELM, and 90% of the out-of-state students have passed the ELM. What is the probablity that a randomly selected student has passed the ELM?

70.6%

66.0%

25%

63.3%

70.6%

66.0%

25%

63.3%

Explanation / Answer

What is the probablity that a randomly selected student has passed the ELM?

70.6%

66.0%

25%

63.3%

Answer :

A randomly selected student has passed the ELM? ANSWER: 0.66 means 66%

70.6%

66.0%

25%

63.3%

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