SOLUTION: Using this chart below can you help me figure out if you select a student at random What is the probability of selecting a female student? I am having trouble with probability.

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Question 425948: Using this chart below can you help me figure out if you select a student at random What is the probability of selecting a female student? I am having trouble with probability. Thanks!
Major
Gender Biology Anatomy Chemistry Total
Male 105 140 47 292
Female 103 25 52 180
Total 208 165 99 472

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Using this chart below can you help me figure out if you select a student at random What is the probability of selecting a female student? I am having trouble with probability. Thanks!
Major
Gender Biology Anatomy Chemistry Total
Male 105 140 47 292
Female 103 25 52 180
Total 208 165 99 472
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P(female) = 180/472
P(biology|female) = 103/180
P(male|anatomy) = 140/165
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These are not difficult once you see the pattern.
When you have P(a|b) the number in "b" becomes the denominator.
The number of "a's" in b becomes the numerator.
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Hope that helps
Cheers,
Stan H.