Frequency Form of Variance
$$\sigma^2=\frac{\sum f_ix_i^2}{N}-\bar{x}^2$$
Usage
- Used for discrete frequency distributions.
---
Sign in
Please select an account to continue using cracku.in
↓ →
CAT Formulas
Statistics
Frequency Form of Variance
Frequency Form of Variance
$$\sigma^2=\frac{\sum f_ix_i^2}{N}-\bar{x}^2$$
Usage
- Used for discrete frequency distributions.
---
Start your IIM journey with the right preparation and crack CAT 2026.
Educational materials for CAT preparation