2024 TJC H1 Q6
2024 TJC H1 Q6
5 marks
For a certain strain of a flower, the probability that a seed produces a red flower is \(0.2\), otherwise the seed produces a white flower.
In a large flower farm, the seeds of this strain of flowers are sold in packets of \(10\).
- Find the probability that a randomly chosen packet has at most one seed that produces a red flower. State one assumption in your calculation.[2]
Bernice bought \(15\) packets of seeds.
- Find the probability that at least \(8\) packets have more than one seed that produces red flowers.[3]
Solution:
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Answer:
(a) \(0.376\). Assumption: independent seed outcomes.
(b) \(0.840\), using the unrounded probability from part (a).
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