GCSE Maths Practice: relative-frequency

\( \begin{array}{l}\text{A bag contains 3 red, 2 blue, and 5 green marbles.}\\\text{A marble is drawn 50 times, and a red marble is drawn 15 times.}\\\text{What is the relative frequency of drawing a red marble?}\end{array} \)

Choose one option:

\( \frac{15}{50} \) \( \frac{1}{5} \) \( \frac{3}{10} \)