A gated community having 1000 flats- 500 families purchase Jersey toned milk. Among the families, a sample of 100 famili

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answerhappygod
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A gated community having 1000 flats- 500 families purchase Jersey toned milk. Among the families, a sample of 100 famili

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A gated community having 1000 flats- 500 families purchase
Jersey toned milk. Among the families, a sample of 100 families
choosen. Using normal approximation to binomial distribution,
determine the probability that
a) At least 60 of them purchase jersey millk?
b) Not more than 55 families purchase Jersey milk?
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