Research shows that 30% of all women taking a certainmedication do not respond f

Question

Research shows that 30% of all women taking a certainmedication do not respond favourably. Use probabilities from thebinonmial probability table Which are: 0: 0.040 1: 0.156 2: 0.267 3: 0.267 4: 0.172 5: 0.074 6:   0.021 7: 0.004 8: 0.000 9: 0.000 that among nine randomly selected women taking themedication a) at least four will not respond favourably Research shows that 30% of all women taking a certainmedication do not respond favourably. Use probabilities from thebinonmial probability table Which are: 0: 0.040 1: 0.156 2: 0.267 3: 0.267 4: 0.172 5: 0.074 6:   0.021 7: 0.004 8: 0.000 9: 0.000 that among nine randomly selected women taking themedication a) at least four will not respond favourably

Explanation / Answer

Pr[ at least 4] = Pr[ 4 or 5 or 6 or 7 or 8 or 9] = 0.172 +0.074 + 0.021 + 0.004 + 0.000 + 0.000 = 0.271

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