NDA Formula Sheet for Statistics and Probability: Complete Exam Notes & Cheat Sheet

Master Statistics and Probability for the NDA Exam

Cracking the NDA syllabus requires a sharp focus on high-weightage topics like Statistics and Probability. Designed specifically according to the latest UPSC NDA exam pattern, this free study material offers a comprehensive cheat sheet and quick-revision NDA formula sheet. Boost your preparation with crisp concept summaries, essential theorems, and quick formulas for measures of central tendency, variance, conditional probability, Bayes' theorem, and binomial distribution. Whether you are doing last-minute revision or building foundational clarity, these important chapters and structured notes will help you maximize your score in the Mathematics paper.

Key Topics Covered in this Cheat Sheet:

• Measures of Central Tendency: Mean, Median, Mode, and \(\text{Mode} = 3\text{Median} - 2\text{Mean}\)
• Measures of Dispersion: Variance \(\sigma^2\), Standard Deviation \(\sigma\), and Coefficient of Variation
• Probability Fundamentals: Axiomatic Probability, \(P(A \cup B) = P(A) + P(B) - P(A \cap B)\), and Odds in Favor/Against
• Conditional Probability & Bayes' Theorem: \(P(A|B) = \frac{P(A \cap B)}{P(B)}\)
• Random Variables & Binomial Distribution: Mean \(np\) and Variance \(npq\)