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Topic: Histograms and Data Distribution
Example:
Suppose we have a dataset of 100 students' test scores ranging from 60 to 100. We can create a histogram to visualize the distribution of these scores. The X-axis represents the score range, while the Y-axis represents the frequency or count of students in each score range. Each bar in the histogram represents a score range, and the height of the bar represents the frequency of students in that range.
Exercises:
- Create a histogram for the following dataset: 85, 92, 78, 90, 88, 85, 95, 80, 82, 88, 92.
- Interpret the histogram you created in exercise 1. What does it tell you about the distribution of the dataset?
Answers for the exercises above:
- The histogram for the dataset is as follows:
Score Range | Frequency |
78-80 | 1 |
81-83 | 1 |
84-86 | 2 |
87-89 | 2 |
90-92 | 3 |
93-95 | 1 |
- The histogram shows that the majority of the scores fall within the range of 87-92, indicating a relatively high concentration of scores in that range. The distribution is slightly skewed to the right, with fewer scores on the lower end and a few scores on the higher end.
Other Resources:
- 作者:现代数学启蒙
- 链接:https://www.math1234567.com/article/statistics003
- 声明:本文采用 CC BY-NC-SA 4.0 许可协议，转载请注明出处。
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