Question

which line plot describes this data set? 21, 20, 18, 21, 22

Explanation:

Step1: Count the frequency of each number

• For \(18\): appears \(1\) time.
• For \(20\): appears \(1\) time.
• For \(21\): appears \(2\) times.
• For \(22\): appears \(1\) time.

Step2: Analyze the first line - plot

The first line - plot has one \(X\) for \(18\), one \(X\) for \(20\), two \(X\)s for \(21\), and one \(X\) for \(22\).

Step3: Analyze the second line - plot

The second line - plot has one \(X\) for \(18\), one \(X\) for \(20\), three \(X\)s for \(21\), and one \(X\) for \(22\).

Answer:

The first line - plot.