Praxis 5003 Practice Question
Which of the following graphs is best to use to display data over time?
Correct Answer: B
Rationale: A line graph is ideal for displaying data over time as it effectively illustrates trends and changes by connecting individual data points with a continuous line. This visual representation allows for easy identification of patterns, increases or decreases in values, and fluctuations over the specified period.
In contrast, a bar graph (A) is better suited for comparing discrete categories rather than showing trends over time. A stem-and-leaf plot (C) is useful for displaying the distribution of data but does not emphasize time-related changes. Similarly, a box-and-whisker plot (D) summarizes data distribution and highlights medians and quartiles, making it less effective for tracking changes across time intervals.
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