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What should a frequency polygon look like?

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What should a frequency polygon look like?

A frequency polygon is very similar to a histogram. In fact, they are almost identical except that frequency polygons can be used to compare sets of data or to display a cumulative frequency distribution. In addition, histograms tend to be rectangles while a frequency polygon resembles a line graph.

What is a frequency histogram and polygon?

A frequency polygon is a graph constructed by using lines to join the midpoints of each interval, or bin. relative frequency. A histogram is a graph that illustrates the relative frequency or probability density of a single variable.

What is cumulative frequency polygon?

A plot of the cumulative frequency against the upper class boundary with the points joined by line segments. Any continuous cumulative frequency curve, including a cumulative frequency polygon, is called an ogive.

How do you create a frequency polygon?

Steps to Draw a Frequency Polygon

  1. Mark all the class marks on the horizontal axis. It is also known as the mid-value of every class.
  2. Corresponding to each class mark, plot the frequency as given to you.
  3. Join all the plotted points using a line segment.
  4. This resulting curve is called the frequency polygon.

How do you make a frequency polygon?

Why are frequency polygons better than histograms?

Difference between frequency polygon and histogram: 1. Frequency polygon is an improvement over histogram because it provides a continuous curve indicating the causes of rise and fall in the data. On the other hand, frequency polygon is an approximate curve, but still it is more usefui as compared to histogram.

What is polygon histogram?

A frequency polygon is almost identical to a histogram, which is used to compare sets of data or to display a cumulative frequency distribution. It uses a line graph to represent quantitative data. are used to represent statistical data pictorially.

How do you find frequency polygon?

How do you construct a frequency polygon without a histogram?

HOW TO DRAW FREQUENCY POLYGON WITHOUT HISTOGRAM

  1. Step 1 : Obtain the frequency distribution and compute the mid points of each class interval.
  2. Step 2 : Represent the mid points along the X-axis and the frequencies along the Y-axis.
  3. Step 3 :
  4. Step 4 :
  5. Step 5 :

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