Question

which line plot describes this data set?
7, 8, 9, 7, 8

Explanation:

Step1: Count the frequency of each number

The number \(7\) appears \(2\) times, the number \(8\) appears \(2\) times, and the number \(9\) appears \(1\) time.

Step2: Analyze the first line - plot

In the first line - plot, the number \(6\) has a mark (\(x\)), but our data set has no \(6\).

Step3: Analyze the second line - plot

In the second line - plot, for \(7\) there are \(2\) \(x\)'s, for \(8\) there are \(2\) \(x\)'s, and for \(9\) there is \(1\) \(x\), which matches our data set \(7,8,9,7,8\).

Answer:

The second line - plot.