A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights of 711 babies born in New York. The mean weight was 3001 grams with a standard deviation of 883 grams. Assume that birth weight data are approximately bell-shaped. (a) Estimate the number of newborns whose weight was less than 4767 grams. (b) Estimate the number of newborns whose weight was greater than 2118 grams. (c) Estimate the number of newborns whose weight was between 3001 and 3884 grams.

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