Joining the midpoints of the tops of adjacent histogram rectangles produces a graph known as ______________?
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Answer: A. Frequency polgon
Explanation
Histograms consist of adjacent rectangular bars representing frequency distributions across class intervals. Connecting the highest points of these bars creates a continuous line graph representation. Therefore joining the midpoints of adjacent histogram rectangle tops produces a frequency polygon. Frequency polygons help visualize data distributions and compare multiple datasets simultaneously. The midpoints represent the exact center value of each individual histogram class interval. The polygon is typically anchored to the horizontal axis at both ends to close the shape.
Educators use frequency polygons to compare student test score distributions across different classes. Researchers prefer polygons over histograms when overlaying multiple distributions on one chart. Medical professionals plot patient recovery times using frequency polygons for trend visualization. Ogive represents a cumulative frequency graph rather than a simple midpoint connection chart. Pie chart displays proportional parts of a whole using circular sector slices. Histogram is the underlying bar chart structure rather than the connected line graph.
- Subject
- Mathematics
- Category
- Statistics
- Topic
- —
- Difficulty
- medium
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