Question: The average age which men marry for the first time in the bayside queens area is 24.9 years old with a standard deviation of 3.0

The average age which men marry for the first time in the bayside queens area is 24.9 years old with a standard deviation of 3.0 years. For a random sample of 81 men what is the standard error of the mean? The probability that the age at which a man first got married is less than years? The probability that the age at which a man first got married is greater than 25? The probability that the age between 24.5 and 25 years? I need solutions to these problems

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