he number of chocolate chips in an? 18-ounce bag of chocolate chip cookies is approximately normally...

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he number of chocolate chips in an? 18-ounce bag of chocolatechip cookies is approximately normally distributed with a mean of1252 chips and standard deviation 129 chips.

?(a) What is the probability that a randomly selected bagcontains between 1100 and 1400 chocolate? chips, inclusive?

?(b) What is the probability that a randomly selected bagcontains fewer than 1025 chocolate? chips?

?(c) What proportion of bags contains more than 1200 chocolate?chips?

?(d) What is the percentile rank of a bag that contains 1050chocolate? chips?

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Solution Given that mean 1252standard deviation 129a    See Answer
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