GCSE Maths Practice: relative-frequency

Question 1 of 10

This question calculates relative frequency from repeated trials.

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

Choose one option:

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

Always divide the observed frequency by total attempts.

Relative frequency = number of successes ÷ total trials.