Question

Define polygon, histogram,
Frequency curve?
Explain with example.​

Answer 1

Answer:

HISTOGRAM :

A histogram is a graphical representation that organizes a group of data points into user-specified ranges. It is similar in appearance to a bar graph. The histogram condenses a data series into an easily interpreted visual by taking many data points and grouping them into logical ranges or bins.

Example of a Histogram

There are 3 customers waiting between 1 and 35 seconds. There are 5 customers waiting between 1 and 40 seconds. There are 5 customers waiting between 1 and 45 seconds. There are 5 customers waiting between 1 and 50 seconds.

POLYGON:

Polygon. It is a 2D closed figure made with the help of minimum three line segments. The line segments constituting a polygon are called edges. The point where any two edges of a polygon meet each other is called a vertex.

For example, a triangle has three sides, and a quadrilateral has four sides.

FREQUENCY CURVE:

A frequency polygon is a graph constructed by using lines to join the midpoints of each interval, or bin. The heights of the points represent the frequencies.

Solved Example for You.

Test Scores Frequency

49.5-59.5 5

59.5-69.5 10

69.5-79.5 30

79.5-89.5 40

Explanation:

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Answer 2

Explanation:

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A frequency polygon is a graph constructed by using lines to join the midpoints of each interval, or bin. The heights of the points represent the frequencies. A frequency polygon can be created from the histogram or by calculating the midpoints of the bins from the frequency distribution table.

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