NDA 2025 Mathematics question
Let be a random variable following binomial distribution whose mean and variance are 200 and 160 respectively. What is the value of the number of trials ?
Answer: (B)
Solution
For a binomial distribution, mean and variance . Dividing, $q =
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account