Monthly charges for cell phone plans in the US are normally distributed with a mean of $62 and a standard deviation of $18. Suppose the area under the normal curve to the left of x = $44 is 0.1587. Provide 2 interpretations of this result. The number of chocolate chips in an 18-ounce bag of Chips Ahoy! Chocolate Chip Cookies is approximately normally distributed with a mean of 1262 chips and a standard deviation of 118 chips according to a study by cadets of the US Air Force Academy. What proportion of 18-ounce bags of Chips Ahoy! contains no more than 1125 chocolate chips? Determine the 4th percentile for chocolate chips in an

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