A three-colour spinner spun twice
A three-colour spinner spun twice
Secondary 4
6 marks
A spinner lands on exactly one of red, white and green. The probability that it lands on red is \(0.5\) and the probability that it lands on white is \(0.3\).
- Find the probability that it lands on green.[1]
- Find the probability that one spin lands on red or green.[1]
- The spinner is spun twice. The two spins are independent. Find the probability that both spins land on the same colour.[2]
- Find the probability that at least one of the two spins lands on green.[2]
Solution:
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Answer:(a) \(0.2\) (b) \(0.7\) (c) \(0.38\) (d) \(0.36\)
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