What is frequency polygon with example?
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What is frequency polygon with example?
Frequency Polygon: A frequency polygon is a great topic in the subject of Mathematics. A frequency polygon is the graphical representation of data that is arranged in a distribution.
What’s a frequency polygon?
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.
How do you solve a frequency polygon question?
We now start by plotting the class marks such as 54.5, 64.5, 74.5 and so on till 94.5. Note that we will also plot the previous and next class marks to start and end the polygon, i.e. we plot 44.5 and 104.5 as well….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 |
What is frequency polygon PDF?
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 find relative frequency on a calculator?
For example, there were 20 items sold in the price range of $1 – $10. Thus, the relative frequency of the class $1 – $10 is 20 / 66 = 0.303….How to Calculate Relative Frequency on a TI-84 Calculator.
| Item Price | Frequency | Relative Frequency |
|---|---|---|
| $41 – $50 | 4 | 0.061 |
How do u plot a frequency polygon?
A frequency polygon is a line graph of class frequency plotted against class mid-point. It can be obtained by connecting the mid-points of the tops of the rectangles in the histogram or drawn as a line graph.
How do you analyze frequency polygons?
Draw the Y-axis to indicate the frequency of each class. Place a point in the middle of each class interval at the height corresponding to its frequency. Finally, connect the points. You should include one class interval below the lowest value in your data and one above the highest value.
How do you plot a polygon in R?
The R polygon function draws a polygon to a plot….Figure 1: Square Polygon in Empty Plot.
- x: Here we specify the x-coordinates of each corner of the square polygon.
- y: Here we specify the y-coordinates of each corner of the square polygon.
- color: Here we specify the color of the polygon.
What is frequency polygon in statistics?
How do you draw a frequency polygon in class 9?
To draw a frequency polygon we mark the class marks along x-axis. Therefore, the modified tables are: We plot the ordered pairs (5, 3), (15, 9), (25, 17), (35, 12) and (45, 9) and join the points by line segments and obtain the frequency polygon of section A.
What is frequency polygon Mcq?
A frequency polygon is a graph that represents frequency distribution.
