Question

The following frequency distribution represents the birth weight of all babies born in the United States in 2004. Approximate the mean and standard deviation birth weight.
Weight (grams) .... Number of Babies (thousands)
0-999 ........ 30
1000-1999 ...... 97
2000-2999 ....... 935
3000-3999 ....... 2698
4000-4999 ....... 344
5000-5999 ....... 5


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  • CreatedApril 27, 2015
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