Bar Charts

Rumman Ansari Software Engineer 2024-07-28 09:42:12 158 Share
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Bar Charts - Aptitude Formulas

Bar Chart: A bar chart represents data with rectangular bars. The length or height of each bar is proportional to the value it represents.

Title: Describes what the bar chart is about.
Axis: The x-axis (horizontal) and y-axis (vertical) provide a reference for the data.
Bars: Represent data values. Can be vertical or horizontal.
Labels: Describe the data categories and values.

Bars extend vertically from the x-axis:

Bars extend horizontally from the y-axis:

Shows bars grouped together for different categories:

Shows bars stacked on top of each other to represent cumulative data:

If the values represented by the bars are $v_{1}, v_{2}, v_{3}, \dots, v_{n}$ , the total value is:

Total Value = v_{1} + v_{2} + v_{3} + \dots + v_{n}

If the values represented by the bars are $v_{1}, v_{2}, v_{3}, \dots, v_{n}$ , the average value is:

Average Value = \frac{v_{1} + v_{2} + v_{3} + \dots + v_{n}}{n}

If a bar represents a value $v_{i}$ and the total value is $V$ , the percentage of the total is:

Percentage = (\frac{v_{i}}{V}) \times 100

If the values represented by the bars are 10, 20, 30, and 40, the total value is:

Total Value = 10 + 20 + 30 + 40 = 100

If the values represented by the bars are 10, 20, 30, and 40, the average value is:

Average Value = \frac{10 + 20 + 30 + 40}{4} = \frac{100}{4} = 25

If a bar represents a value 20 and the total value is 100, the percentage of the total is:

Percentage = (\frac{20}{100}) \times 100 = 20 %

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Uploaded On: 2024-10-16 02:19:04

Uploaded On: 2024-07-08 12:13:42

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