In a bag, there are three balls; one black, one red, and one green. Two balls are drawn one after another with replacement. State sample space and n(S). - Mathematics and Statistics

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Sum

In a bag, there are three balls; one black, one red, and one green. Two balls are drawn one after another with replacement. State sample space and n(S).

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Solution

The bag contains three balls out of which one is black (B), one is red (R) and the other one is green (G).
Two balls are drawn one after the other, with replacement, from the bag.
∴ the sample space S is given by
S = {BB, BR, BG, RR, RB, RG, GG, GB, GR}
∴ n(S) = 9

  Is there an error in this question or solution?
Chapter 7: Probability - Exercise 7.1 [Page 99]
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