SOLUTION: A jar contains 4 red marbles numbered 1 to 4 and 8 blue marbles numbered 1 to 8. A marble is drawn at random from the jar. Find the probability the marble is a. Odd-numbered

Algebra.Com
Question 1157146: A jar contains 4 red marbles numbered 1 to 4 and 8 blue marbles numbered 1 to 8. A marble is drawn at random from the jar. Find the probability the marble is
a. Odd-numbered given that the marble is blue.
b. Blue given that the marble is odd-numbered.

Answer by Boreal(15235)   (Show Source): You can put this solution on YOUR website!
Given that the marble is blue (8) the probability it is odd is 4/8 (1/2), odd numbers 1,3,5,7
Given the marble is odd-numbered 1,3 R and the above B there are six possibilities, and 4 are blue, so the probability is (4/6) or 2/3.

RELATED QUESTIONS

A jar contains 6 red marbles numbered 1 to 6 and 4 blue marbles numbered 1 to 4. A marble (answered by ikleyn)
A jar contains 10 red marbles numbered 1 to 10 and 3 blue marbles numbered 1 to 3. A... (answered by chen.aavaz)
A jar contains 12 red marbles numbered 1 to 12 and 6 blue marbles numbered 1 to 6. A... (answered by ikleyn)
A jar contains 10 red marbles numbered 1 to 10 and 6 blue marbles numbered 1 to 6. A... (answered by Boreal)
A jar contains 32 red marbles numbered 1 to 32 and 50 blue marbles numbered 1 to 50. A... (answered by math_tutor2020)
TUTORS I REALLY NEED HELP ANSWERING THIS PROBLEM A jar contains 9 red marbles... (answered by josgarithmetic)
A jar contains 12 red marbles numbered 1 to 12, 4 blue marbles numbered 1 to 4, and 10... (answered by Theo,ikleyn)
A jar contains 10 marbles: 3 red, 1 blue, and 6 green. The red marbles are numbered 1-3, (answered by Earlsdon)
A jar contains 4 red marbles, numbered 1 to 4, and 11 blue marbles numbered 1 to 11.... (answered by ikleyn)