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The following data represent the number of live births in the United States in 2007 for women 15 to 49 years old.
Age Live Births
15 - 19 445,045
20 - 24 1,082,837
25 - 29 1,208,405
30 - 34 962,179
35 - 39 499,916
40 - 44 105,071
45 - 49 7,349
Find the following:
1. What is the class width?
2. What is the sample size (n)?
3. What is the mean of the ages?
4. What is the standard deviation of the ages?
5. Construct a relative frequency distribution.
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