GCSE Maths Practice: probability-scale

Question 10 of 10

Practice probability of selecting a red ball from a bag of red and blue balls.

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\( \begin{array}{l}\textbf{What is the probability of selecting a red ball from a bag} \\ \text{containing 10 red balls and 5 blue balls?}\end{array} \)

Choose one option:

Divide number of red balls by total balls.

Count red balls and divide by total balls to calculate probability.