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The average age for a women having their last child is age 35. Assume the ages...

The average age for a women having their last child is age 35. Assume the ages for having the last child have a normal distribution with a standard deviation of 10 years.

(a) What is the probability that a woman having her last child is between the ages of 30 and 37?

(b) Approximately 45% of women have their last child before what age?

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