Question

A bag contains 50 marbles. Marsha chooses a marble, records its color, and then puts the marble back into the bag. Marsha repeats this process and records 7 red marbles and 3 yellow marbles. What is the ratio of the number of red marbles to the number of yellow marbles she chooses

Answer 1

Probability is the chance that an event will occur and it's measured by the ratio of the favorable cases to the total number of cases possible.

The ratio for probability is given by:

`\begin{gathered} \text{ratio of 3 marbles:ratio of yellow marbles} \\ 7\colon3 \end{gathered}`