Question

how many plants were $2\frac{1}{4}$ feet tall?
height of plants
dot plot with categories 1, $1\frac{1}{4}$, $1\frac{1}{2}$, $1\frac{3}{4}$, 2, $2\frac{1}{4}$, $2\frac{1}{2}$, $2\frac{3}{4}$ and corresponding dots: 1 (1), $1\frac{1}{4}$ (2), $1\frac{1}{2}$ (3), $1\frac{3}{4}$ (1), 2 (6), $2\frac{1}{4}$ (2), $2\frac{1}{2}$ (5), $2\frac{3}{4}$ (1)

Explanation:

Step1: Locate $2\frac{1}{4}$ on the axis

Identify the mark for $2\frac{1}{4}$ feet on the horizontal axis.

Step2: Count the X's above the mark

Count the number of "X" symbols positioned vertically above $2\frac{1}{4}$.
<Expression>Count = 2</Expression>

Answer:

2