JEE Main 2022 Mathematics question
A random variable X has the following probability distribution:
| x | 0 | 1 | 2 | 3 | 4 | |---|---|---|---|---|---| | P(X) | k | 2k | 4k | 6k | 8k |
The value of P(1 < X < 4 | ) is equal to
Answer: (1)
Solution
The probabilities sum to 21k = 1, so k = 1/21. Given (P = 7k), the event 1
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