In a certain industrial plant, vacancies have occurred in the technical department from 1960 to 1967 in the following manner: Using the equation for the Poisson distribution, calculate the theoretical...

In a certain industrial plant, vacancies have occurred in the technical department from 1960 to 1967 in the following manner:

Using the equation for the Poisson distribution, calculate the theoretical values for the number of months and compare with the data given.