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The following data represent the age of the mother

The following data represent the age of the mother at childbirth for 1980 and 2007.

(a) Approximate the population mean and standard deviation of age for mothers in 1980.

(b) Approximate the population mean and standard deviation of age for mothers in 2007.

(c) Which year has the higher mean age?

(d) Which year has more dispersion in age?

(a) Approximate the population mean and standard deviation of age for mothers in 1980.

(b) Approximate the population mean and standard deviation of age for mothers in 2007.

(c) Which year has the higher mean age?

(d) Which year has more dispersion in age?

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