Newborn babies: A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights of 758 babies born in New York. The mean weight was 3154 grams with a standard deviation of 835 grams. Assume that birth weight data are approximately bell-shaped.     (a) Estimate the number of newborns whose weight was less than 4824 grams. (b) Estimate the number of newborns whose weight was greater than 2319 grams (c) Estimate the number of newborns whose weight was between 3154 and 3989 grams.   Approximately   of the 758 newborns weighed between 3154 and 3989 grams.

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