Sandeep Garg Statistics Class 11 [better] May 2026
Sandeep Garg — Statistics (Class 11)
Sandeep Garg’s Statistics for Class 11 is a concise, exam-focused textbook widely used by Indian senior-secondary students following CBSE and similar syllabuses. It breaks down introductory statistical concepts with clear explanations, worked examples, and practice problems aligned to the typical Class 11 curriculum.
Consumer Price Index (CPI): Important for understanding inflation impact on different income groups (Family Budget Method).
| Mistake | Solution |
| :--- | :--- |
| Skipping the "True/False" section | These often appear as 1-mark assertion-reason questions. Do all objective questions. |
| Memorizing formulas without logic | Write down the derivation of Mean (Step Deviation method) at least once. |
| Ignoring diagrams | Practice drawing Histograms and Frequency Polygons on graph paper. Externals check neatness. |
| Only reading, not solving | Economics numericals require muscle memory. Solve every unsolved question at the back. | Sandeep Garg Statistics Class 11
- Individual Series: $\frac\sum xN$
- Discrete Series: $\frac\sum fx\sum f$
- Continuous Series: $\frac\sum fm\sum f$ (where m is the mid-point).
- Short-cut Method: $A + \frac\sum dN$ or $A + \frac\sum fd\sum f \times h$ (Step deviation).
- Is $\sum f = N$?
- Did you take the correct step deviation ($h$)?
- Did you subtract correctly in the Mean Deviation step?
Spearman’s Rank Correlation: Used for qualitative data (beauty, intelligence) or when ranks are given. Formula involves $D^2$ (difference in ranks).
8. Where to Buy or Access
- Offline: Local school bookstores, Dhanpat Rai distributors
- Online: Amazon, Flipkart, Snapdeal (new & used copies)
- E-book: Not officially available for free, but some platforms sell PDFs
- Used copies: OLX, BookChor, or campus second-hand sales
Frequently Asked Questions
