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Paper 1Statistical Techniques3 marks
A bag contains red and blue balls. Event A is drawing a red ball, and event B is drawing a ball with a number on it. The probabilities are: P(A) = 0.5, P(B) = 0.6, and P(A ∩ B) = 0.3.
Description
Probabilities of events A and B
Event A: Drawing a red ball Event B: Drawing a ball with a number Given probabilities: P(A) = 0.5 P(B) = 0.6 P(A ∩ B) = 0.3
| Event | Probability |
|---|---|
| P(A) | 0.5 |
| P(B) | 0.6 |
| P(A ∩ B) | 0.3 |
- a[3]
Calculate Calculate the probability of drawing a ball that is either red or has a number on it (P(A ∪ B)).
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