GCSE Maths Practice: theoretical-vs-experimental-probability

Question 1 of 10

Calculate experimental probability for multiple favorable outcomes.

›

\( \begin{array}{l}\text{A bag contains 5 red, 7 blue, and 3 green marbles.} \\ \text{If a marble is drawn 100 times, what is the experimental probability} \\ \text{of drawing a red or blue marble?}\end{array} \)

Choose one option:

\( \frac{12}{15} \) \( \frac{12}{15} = 0.8 \) \( \frac{4}{5} \)

Sum favorable outcomes first, then divide and simplify.

Experimental probability = favorable ÷ total trials.