Comprehensive Economics XI
- ISBN-10
- 8131801780
- ISBN-13
- 9788131801789
- Pages
- 497
- Language
- English
- Published
- 2011-02
- Publisher
- Laxmi Publications
- Author
- S. A. Siddiqui
Description
Calculation of mean deviation from mean Marks No. of Mid d′ = ()MA 10 − fd′ X = 27 f| D | Students Point X f m | D | 0–10 10 5 – 2 – 20 22 220 10–20 16 15 – 1 – 16 12 192 20–30 30 25 0 0 2 60 30–40 32 35 + 1 + 32 8 256 40–50 12 45 + 2 ...
