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A normal distribution curve with a mean of 23.33, showing an age of 23 marked to the left, with the shaded area representing 0.4801.

A normal distribution curve with a mean of 23.33, showing an age of 23 marked to the left, with the shaded area representing 0.4801.

A visual representation of a normal distribution curve with the mean labeled at 23.33. An age of 23 is marked to the left of the mean, with the shaded area to the left of 23 representing 0.4801, which is the proportion of respondents who experienced their first marriage before age 23 See more