Data And Their Representations
NIOS · Class 10 · Maths
All formulas from Data And Their Representations in NIOS Class 10 Maths. Key equations, constants, and identities for board exam preparation.
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Basic Definitions and Data Types
Range = Maximum value - Minimum value
Class Mark = (Lower limit + Upper limit) ÷ 2
Class Width = Upper limit - Lower limit
Number of classes ≈ Range ÷ Class width
Frequency Distribution Tables
True Lower Limit = Lower Limit - (Gap ÷ 2)
True Upper Limit = Upper Limit + (Gap ÷ 2)
Bar Graphs and Charts
Histograms
Area of rectangle = Base × Height = Class width × Frequency
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