Line Plots · Challenge problem

A line plot has marks at $\dfrac{1}{4}, \dfrac{2}{4}, \dfrac{3}{4}, 1, 1\dfrac{1}{4}, 1\dfrac{2}{4}, 1\dfrac{3}{4}, 2$ (in inches), and there is exactly one X above each mark. Each X is a paper strip of that length. If all the strips are laid end to end, how many inches long is the line?