<PRE><B>Question 567359</B>
Two students, Jim and Joan are registered for the same class and attend independently to each other, Jim 91,9% of the time and Joan 84.3% of the time. What is the probability that on any given day 
a) at least on of them will be in class?
P(at least one) = 1 - P(neither in class)
= 1 - 0.081*0.157 = 0.9873
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b) neither will be in class?
P(neither) = 0.081*0.157 = 0.0127
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cheers,
Stan H.
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