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August 4, 2015

Homework Help: statistics

Posted by Sharon on Sunday, October 4, 2009 at 6:06pm.

At a certain college, 15% of the students receieved an A in their required math cousre, 10% receieved an A in their required chemistry course, and 5% receieved an A in both. A student is selected at random.

a.) What is the probability that he received an A in either chemistry or math?

b.) What is the probabilty that he receieved an A in chemistry, if he ahd an A in math?

c.) what is the probaility that he receieved an A in math, if he had an A in chemistry?

d.) Are th events " A in math" and "A in chemistry" independent?

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