Question

Pls help. The probability of choosing a red marble out of a bag of marbles is 3/10. What are the odds in favor of choosing a red marble?

(Justify your answer)

Answer 1

3 : 7

Explanation:

If the probability of choosing red = 3/10

The we can infer that ; ratio of the number of red marbles to the total number of marbles = 3 : 10

Thus number if marbles that aren't red :

10 - 3 = 7

The odd in favor of picking a red marble :

Red : not red

3 : 7