What is the probability that a randomly selected bag

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The number of chocolate chips in an? 18-ounce bag of chocolate chip cookies is approximately normally distributed with mean 1252 and standard deviation 129 chips.?

(a) What is the probability that a randomly selected bag contains between 1000 and 1400 chocolate? chips??

(b) What is the probability that a randomly selected bag contains 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 1050 chocolate? chips?

Reference no: EM133266266

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