How to Draw Histogram?
Histogram is the basic toll of representing data and we can easily draw histogram by following the steps added below:
Step 1: Collect the data you wish to display in the histogram. This might range from test results to population distribution. For example: Assume you get the following test scores: 14, 20, 12, 26, 8, 7, 2, 28, 30, 16, 18, 23. First arrange it in ascending order. Exam results: 2, 7, 8, 12, 14, 16, 18, 19, 23, 26, 28 and 30.
Step 2: Determine the number of intervals, or “bins,” you wish to split your data into. This is determined by the scope and distribution of your data, as well as the amount of information you choose to display. Assume we wish to divide the scores into 5 bins.
Step 3: Determine the limits of each bin. These bounds should encompass the complete range of your data and be regularly spaced. 0-5 – 10 – 15 – 20 – 25 – 30.
Step 4: Count the number of data points that belong in each bin.
Class Interval |
Frequency |
---|---|
0-5 |
1 |
5-10 |
2 |
10-15 |
2 |
15-20 |
3 |
20-25 |
1 |
25-30 |
3 |
Step 5: On a graph, show the bin borders on the x-axis and the frequency of data points in each bin on the y-axis.
Create bars for each bin, with the height of each bar representing the frequency of data points in that bin.
In this histogram, the x-axis depicts the bins, while the y-axis indicates the frequency of data points falling within each bin. The bars represent the sample data’s distribution across the given bins.
Histogram – Definition, Types, Graph, and Examples
Histogram: A histogram is a graphical representation used in statistics to show the distribution of numerical data. It looks somewhat like a bar chart, but with key differences that make it suitable for showing how data is distributed across continuous intervals or specific categories that are considered “bins”.
A histogram is similar to a bar graph. The basic difference between the two is that bar charts correlate a value with a single category or discrete variable, whereas histograms visualize frequencies for continuous variables.
In this article, we have provided every detail about Histograms, their definition, types, examples, how the histogram looks, etc.
Table of Content
- What is Histogram?
- Histogram Meaning
- Parts of a Histogram
- Types of Histogram
- Uniform Histogram
- Bimodal Histogram
- Symmetric Histogram
- Right-Skewed Histogram
- Left-Skewed Histogram
- Frequency Histogram
- Relative Frequency Histogram
- Cumulative Frequency Histogram
- Cumulative Relative Frequency Histogram
- Histogram Examples
- 1. Normal Distribution Histogram
- 2. Skewed Distribution Histogram
- Histogram Graph
- How to Draw Histogram?
- How to Interpret a Histogram?
- When to Use Histogram?
- Advantages of Histogram
- Disadvantages of Histogram
- Applications of Histogram
- Difference between Bar Graph And Histogram
- Histogram Solved Examples
- Practice Problems of Histogram
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