Mark with an arrow (↓) the probability the counter is (a) red - OCR - GCSE Maths - Question 5 - 2020 - Paper 1

Next, evaluate the probability that the counter is yellow. If there are 2 yellow counters out of the same 10 total counters, the calculation is as follows:

$P(yellow) = \frac{\text{Number of yellow counters}}{\text{Total number of counters}} = \frac{2}{10} = 0.2$

Mark the arrow at 0.2 on the number line.

Finally, determine the probability that the counter is green. If there are 3 green counters out of the 10 total counters, then:

$P(green) = \frac{\text{Number of green counters}}{\text{Total number of counters}} = \frac{3}{10} = 0.3$

Mark the arrow at 0.3 on the number line.