What is frequency polygon 11th?

What is frequency polygon 11th?

A frequency polygon is a graphical form of representation of data. It is used to depict the shape of the data and to depict trends. It is usually drawn with the help of a histogram but can be drawn without it as well.

What is Comulative frequency polygon?

An ogive (oh-jive), sometimes called a cumulative frequency polygon, is a type of frequency polygon that shows cumulative frequencies. In other words, the cumulative percents are added on the graph from left to right. An ogive graph plots cumulative frequency on the y-axis and class boundaries along the x-axis.

What is frequency polygon give an example?

A frequency polygon is a line graph of class frequency plotted against class midpoint. It can be obtained by joining the midpoints of the tops of the rectangles in the histogram (cf. Fig. 3.3.).

How do you read an ogive?

An ogive (a cumulative line graph) is best used when you want to display the total at any given time. The relative slopes from point to point will indicate greater or lesser increases; for example, a steeper slope means a greater increase than a more gradual slope.

What is a frequency polygon used for?

A frequency polygon is a visual representation of a distribution. The visualization tool is used to understand the shape of a distribution. Essentially, the frequency polygon indicates the number of occurrences for each distinct class in the dataset.

How do I create a frequency polygon in Excel?

How to Make a Frequency Polygon in Excel

  1. Step 1: Enter the data for a frequency table. Enter the following data for a frequency table that shows the number of students who received a certain score on an exam:
  2. Step 2: Find the midpoint of each class.
  3. Step 3: Create the frequency polygon.

What is a frequency diagram?

A frequency diagram, often called a line chart or a frequency polygon, shows the frequencies for different groups. The frequency chart below shows the results of the table. To plot a frequency polygon of grouped data, plot the frequency at the midpoint of each group.

What is a frequency table look like?

A frequency table is a table that lists items and shows the number of times the items occur. We represent the frequency by the English alphabet ‘f’. For example, Alan has to put the footballs in two boxes.

How do you plot a frequency polygon Mcq?

2. To create a frequency polygon, you must first:

  1. Create a histogram.
  2. Connect the points.
  3. Create a cumulative frequency table.
  4. Find the midpoints for each bar on the histogram.
  5. Place a point on the origin at the end of the histogram.

What is histogram Mcq?

The correct answer is c) A histogram is a graph in which values of observations are plotted on the horizontal axis, and the frequency with which each value occurs in the data set is plotted on the vertical axis.

How do you draw a ogive?

How to Draw Less Than Ogive Curve?

  1. Draw and mark the horizontal and vertical axes.
  2. Take the cumulative frequencies along the y-axis (vertical axis) and the upper-class limits on the x-axis (horizontal axis).
  3. Against each upper-class limit, plot the cumulative frequencies.
  4. Connect the points with a continuous curve.

Why do we use ogives?

Create the Ogive by plotting the purpose like the cumulative frequency of every class interval. Most Statisticians use the Ogive curve, to illustrate the data in the pictorial representation. It helps in estimating the number of observations that are less than or equal to the particular value.

What is the difference between a frequency polygon and an ogive?

The most important difference between them is that an ogive is a plot of cumulative values, whereas a frequency polygon is a plot of the values themselves. So, to get from a frequency polygon to an ogive, we would add up the counts as we move from left to right in the graph.

What do Ogives represent?

Ogives are graphs that are used to estimate how many numbers lie below or above a particular variable or value in data. To construct an Ogive, firstly, the cumulative frequency of the variables is calculated using a frequency table.