Mathematics
Mathematics, 03.04.2020 21:35, Billie9166

The average age for a person getting married for the first time is 26 years (U. S. News and World Report, June 6, 1994). Assume the ages for first marriages have a normal distribution with a standard deviation of four years. a) What is the probability that a person getting married for the first time is younger than 23 years of age?b) What is the probability that a person getting married for the first time is in his or her twenties?c) 90% of people getting married for the first time get married before what age?

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