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Example 4 - Chapter 12 Class 9 Statistics
Last updated at Dec. 13, 2024 by Teachoo
Chapter 12 Class 9 Statistics
Concept wise
- Collecting Data
- Raw Data
- Ungrouped Data
- Grouped Data
- Bar Graph
- Histogram
-
Frequency polygon
- Mean
- Median
- Mode
- Combined - Mean Median Mode
Transcript
Example 4 Consider the marks, out of 100, obtained by 51 students of a class in a test. Draw a frequency polygon corresponding to this frequency distribution table. We draw the frequency polygon by drawing a histogram first Calculating points where frequency = 0 Difference = 10 0 = 10 First point = (0 + 10)/2 10 = 5 10 = 5 Last point = (90 + 100)/2 + 10 = 95 + 10 = 105 So, we plot points ( 5, 0) & (105, 0)
