-
The number of accidents occurring in a plant in a month follows Poisson distribution with mean as 5.2. The probability of occurrence of less than 2 accidents in the plant during a randomly selected month is
-
- 0.029
- 0.034
- 0.039
- 0.044
Correct Option: B
Given λ = 5.2
Let x be random variable which follows Poisson’s distribution
P(x < 2) = P(x = 0) + P(x = 1)
| = | + | = e-5.2 (6.2) | ||
| 0! | 1! |
= 0.0055 × 6.2 = 0.034
