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Suppose the average age of first marriage (normally distributed) in the USA for women is 27 years with a standard deviation of 1.2 years (

Suppose the average age of first marriage (normally distributed) in the USA for women is 27 years with a standard deviation of 1.2 years ( = 27, = 1.2). What age (X value) would be considered in the top 10% (last 10% to get married)

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