Ans 1)
Probability of success (drawing a tail) = 40/100 = 0.4
Total number of trials n = 3
Formula to calculate Binomial probability:
Probability when there is 0 tail:
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Probability when there is 1 tail:
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Probability when there is 2 tail:
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Probability when there is 3 tail:
Y | 0 | 1 | 2 | 3 |
P(Y) | 0.2160 | 0.4320 | 0.2880 | 0.0640 |
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