Question

which of these data sets could best be displayed on a dot plot?
721, 722, 722, 723, 724, 724, 724, 725, 727, 728, 730
1.3, 1.9, 2.5, 2.7, 2.7, 3.5, 4.8, 5.3, 7.9, 9.0
16, 29, 31, 37, 44, 49, 58, 63, 69, 70, 83, 97
0.012, 0.078, 0.093, 0.147, 0.187

Explanation:

Step1: Recall Dot Plot Use

Dot plots are best for data with repeated values or discrete, clustered data (small range, some repeats).

Step2: Analyze Each Dataset

• First dataset: Values like 722 (2x), 724 (3x) – repeated, small range (721 - 730).
• Second dataset: 2.7 (2x), but range 1.3 - 9.0 (larger, mixed decimals).
• Third dataset: All unique, range 16 - 97 (large, no repeats).
• Fourth dataset: All unique, small range but no repeats.

Step3: Identify Best Fit

First dataset has repeated values, suitable for dot plot (shows frequency via dots).

Answer:

The data set \( 721, 722, 722, 723, 724, 724, 724, 725, 727, 728, 730 \)