Question

what are the odds against picking a red marble from the jar below? the total number of marbles is 20? a) 7/3 b) 13/7 c) 7/13 d) 13/7

Explanation:

Step1: Count red marbles

Count red marbles: \(8\)

Step2: Count non - red marbles

Count non - red marbles: \(20 - 8=12\)

Step3: Calculate odds

Odds against (non - favorable to favorable) \(=\frac{\text{non - red}}{\text{red}}=\frac{12}{8}=\frac{3}{2}\)

Answer:

C. \(\frac{3}{2}\)