Question 252521
Please assist me with this question. 
A baseball player with a batting average of .300 comes to bat. What are the odds in favor of the ball player getting a hit. 
Answer: 3 to 7
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General Rule:
If P(A) = a and P(not A) = b, 
then "odds for A" = a/b = a:b
and "odds against A" = b/a = b:a
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Your Problem:
P(hit) = 0.3
P(no hit) = 0.7
So "odds in favor of hit" = 0.3/0.7 = (3/10)/(7/10) = 3/7 or 3:7
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Cheers,
Stan H.