The following data represent the number of live multiple delivery births
The following data represent the number of live multiple-delivery births in 2007 for women 15 to 54 years old.
Age ..... Number of Multiple Births
15–19 ..... 100
20-24 ..... 467
25–29 .... 1620
30-34 .... 2262
35–39 ... 1545
40-44 .... 328
45–49 .... 85
50-54 ... 20
(a) Approximate the mean and standard deviation for age.
(b) Draw a frequency histogram of the data to verify that the distribution is bell shaped.
(c) According to the Empirical Rule, 95% of mothers of multiple births will be between what two ages?
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