Rick measured several objects, and collected these measurements: " = inches \[ 2 \frac{1}{4}\left\|, 3 \frac{1}{4}\right\|, 2 \frac{1}{4}\left\|, 2 \frac{1}{2}\right\|, 2 \frac{1}{2}\left\|, 3 \prime \prime, 2 \frac{3}{4}\right\|, 2 \prime \prime, 2 \prime \] If Rick wants to make a line plot, how many marks should he place over \( 2 \frac{3}{4} i n \) ?

To create a line plot, Rick will plot each measurement as a mark above the corresponding number. The measurement \( 2 \frac{3}{4} \) appears once in the data set. Therefore, Rick should place **one mark** over \( 2 \frac{3}{4} \) on his line plot. Every mark represents a count of how many times that measurement appears, making it easy to visually interpret the data! 🎉 If Rick's measurements were a party, \( 2 \frac{3}{4} \) is the lucky guest who showed up just once but definitely stands out!