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Normal approximation to binomial distribution

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The probability that a patient recovers from a rare blood disease is 0.6. If 100 people are known to have contracted this disease, what is the probability that less than 50 people recovers from this rare blood disease?

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The probability that a patient recovers from a rare blood disease is 0.6. If 100 people are known to have contracted this disease, what is the probability that less than 50 people recovers from this rare blood disease?

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Refer to attached

Let X be the no. of patients recovering from the disease.

X ~ Bin (100, 0.6)

Since n is large, p is not ...

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