# Finding probability using normal approximation to binomial

The probability that an appliance is in repair is .6. If an apartment complex has 100 such appliances, what is the probability that at least 70 will be in repair? Using the normal approximation to the binomial.

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Let X be number of appliances in repair. Then X has a binomial distribution ...

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The solution gives detailed steps on finding the probability that at least 70 will be in repair using the normal approximation to the binomial.

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