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Probability

Probability

IP 4

A bag contains \(3\) red and \(2\) blue counters. Two counters are drawn.

  1. Find \(P(\text{two reds})\) with replacement.

  2. Find \(P(\text{two reds})\) without replacement.

  3. Which method gives the higher probability? Explain using the composition after the first red is drawn.

Solution:

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Answer:(a) \(\frac9{25}\). (b) \(\frac3{10}\). (c) With replacement gives the higher probability.

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