Romelu picks a shirt and shorts - OCR - GCSE Maths - Question 24 - 2018 - Paper 1

To find the probability that Romelu picks a red shirt but does not pick white shorts, we multiply the probabilities of these independent events. From the tree diagram:

• Probability of picking a red shirt: $P(Red) = 0.4$
• Probability of not picking white shorts: $P(Not \, White) = 0.3$

Thus, the combined probability is:

$P(Red \, and \, Not \, White) = P(Red) imes P(Not \, White) = 0.4 imes 0.3 = 0.12$

Therefore, the probability that Romelu picks a red shirt but does not pick white shorts is 0.12.