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A jar contains five red balls numbered 1 to 5, and seven green balls numbered 1...

A jar contains five red balls numbered 1 to 5, and seven green balls numbered 1 to 7. A ball is drawn at random from the jar. Find the following conditional probabilities. (Enter your probabilities as fractions.)

(a) The ball is red, given that it is numbered 1. - answer 1/2

(b) The ball is green, given that it is numbered 7. - answer 1

Don't know the answer for:

(c) The ball is red, given that it has an odd number.

(d) The ball has an odd number, given that it is red.

Math   Statistics-And-Probability   
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