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np, nq formula A) Explain when you can use normal distribution to approximate the binomial distribution...

np, nq formula

A) Explain when you can use normal distribution to approximate the binomial distribution

B) If we already know the binomial probability distribution formula, why do we need to know this one?

C)When is it useful to approximate the binomial distribution as normal. Provide 1 example

Math   Statistics-And-Probability   
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