Answer:
X follows Poisson with mean= 2.2 accidents per week
Parameter of the distribution = 2.2
Step-by-step explanation:
Given that the number of accidents per week at a hazardous intersection varies with mean of 2.2 accidents and a standard deviation 1.4.
Since number of accidents is discrete, this is a discrete distribution.
X is the mean number of accidents per week at the intersection during a year (52 weeks).
We have to find the approximate distribution of X
Since accidents are less compared to the total vehicles here no of vehicles passing through would be large with probability for accident very small such that the product is finite.
Hence this is a case of Poisson distribution
X follows Poisson with mean= 2.2 accidents per week
Parameter of the distribution = 2.2
