Chapter 26 of 27
Formula Sheet
Statistics — Formula Sheet
J&K CET · Mathematics
Free Statistics formula sheet for J&K CET Mathematics 2026 — all important formulas, equations, and constants for quick reference.
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Important formulas and equations from Statistics for J&K CET Mathematics.
Formulas — Statistics
Measures of Dispersion - Range
Range = Maximum value - Minimum valueCoefficient of Range = (Largest - Smallest)/(Largest + Smallest)Mean Deviation
M.D.(x̄) = Σ|xi - x̄|/n (ungrouped data)M.D.(M) = Σ|xi - M|/n (ungrouped data)M.D.(x̄) = Σfi|xi - x̄|/N (grouped data)M.D.(M) = Σfi|xi - M|/N (grouped data)Variance and Standard Deviation
σ² = Σ(xi - x̄)²/n (ungrouped data)σ = √[Σ(xi - x̄)²/n]σ² = Σfi(xi - x̄)²/N (discrete frequency)σ = √[NΣfixi² - (Σfixi)²]/N (shortcut method)σ² = (h²/N²)[NΣfiyi² - (Σfiyi)²] (step deviation)Combined Statistics
x̄ = (n₁x̄₁ + n₂x̄₂)/(n₁ + n₂)σ² = [n₁(σ₁² + d₁²) + n₂(σ₂² + d₂²)]/(n₁ + n₂)Get the complete formula sheet with derivations — continue in Super Tutor
Frequently Asked Questions
What topics are covered in Statistics for J&K CET?
Statistics is an important chapter in J&K CET Mathematics. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: Introduction and Basic Concepts, Range and Coefficient of Range, Mean Deviation, Variance and Standard Deviation - Core Concepts.
How important is Statistics for J&K CET?
Statistics is a frequently tested chapter in J&K CET Mathematics. Questions from this chapter appear regularly in previous year papers. There are 152 practice questions available for this chapter.
How to prepare Statistics for J&K CET?
Start by understanding the core concepts, then solve practice questions. Focus on formulas and their applications. Use revision notes for quick review before the exam.
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Practice questions, revision notes, formula sheet and AI doubt-solver for J&K CET Mathematics.