A data set has a median of 12, an upper quartile of 15, a lower quartile of 10, a minimum of 4, and a maximum of 20. Which statement is true of the box plot of this data set?

In a box plot, the box extends from the lower quartile (10) to the upper quartile (15), and a line inside the box marks the median (12). The whiskers extend from the box to the minimum (4) and maximum (20). Therefore, a line dividing the box will be at 12.

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