- HD 2967: A high-yielding variety, popular in North India.
- PBW 343: Ideal for late-sown conditions.
- WH 1105: Known for its disease resistance.
- Lok-1: Commonly cultivated in Central and Western India.
Derive an expression for maximum speed of a vehicle moving along a horizontal circular track.
If the mean and variance of a binomial distribution are \( 18 \) and \( 12 \) respectively, then the value of \( n \) is __________.