Find probablity using normal approximation to the binomial

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1. The J.O. Supplies Company buys calculators from a Korean supplier. The probability of a defective calculator is 25%. If 16 calculators are selected at random, what is the probability that less than 7 of the calculators will be defective?

2. If x is a binomial random variable where n = 100 and p = .1, find the probability that x is less than or equal to 8 using the normal approximation to the binomial.

Reference no: EM13247199

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