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The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 1261 chips and a standard

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 1261 chips and a standard deviation of 117 chips.

(a) Determine the 27th percentile for the number of chocolate chips in a bag.

(b) Determine the number of chocolate chips in a bag that make up the middle 95% of bags.

(c) What is the interquartile range of the number of chocolate chips in a bag of chocolate chipcookies?

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