Which plot type is best for data with similar values?

• A. Bar graph
• B. Circle graph
• C. Line graph
• D. Stem and leaf plot

Answer: (D)

When data sit tightly around similar values, you want a plot that preserves each number while showing how those numbers are distributed. A stem-and-leaf plot does just that: it splits each value into a leading part (the stem) and a trailing part (the leaf), letting you read every data point and quickly see how many fall into each small range. This makes clustering around certain values, as well as any gaps or subtle shifts in the distribution, easy to spot without losing exact values. Other plots emphasize categories, proportions, or trends over time, which can blur the small differences when all the data are very close to one another. So for data that are similar in value, a stem-and-leaf plot provides the clearest view of their distribution.