Here, we list all formulas that are required for Class 9 and 10 Exams
The formula list includes
- Range
-
Mean
- Mean of Raw Data
- Mean of Discrete Data
- Mean of Grouped Data
-
Median
- Median of Raw Data
- Median of Discrete Data
- Median of Grouped Data
-
Mode
- Mode of Raw Data
- Mode of Discrete Data
- Mode of Grouped Data
Β
Range
Range = Maximum value β Minimum Value
Β
For data
5, 10, 15, 18, 21, 24, 24, 13, 2, 9, 9, 18, 18, 32, 28, 3, 14, 25, 3, 27
Β
Maximum value = 32
Minimum value = 2
Β
Thus,
Range = 32 β 2 = 30
Β
Mean of Raw, Discrete and Grouped Data
Median of Raw, Discrete and Grouped Data
We can also find median using Ogive curve
We draw less than and more than ogive,
Β and their intersection is the median
Mode of Raw, Discrete and Grouped Data
Β
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