Answer
The provided information is a discrete probability distribution and provides a basic information about the data of German immigrants. If the assumptions are not satisfied, then the obtained results regarding the average cost and probabilities will be wrong.
Work Step by Step
From the graphical summary of the provided distribution, the data of number of families and number of people in families is right skewed. The data of the number of freights is not skewed. The mean of the number of families is 0.167, the number of freights is 0.1111, and the number of families is 0.1111. Of the three distributions, the distribution of Number of Families has the largest variation. The mean average cost of the crossing for one family is $5705. The provided distribution satisfies the criteria of a discrete probability distribution as all the probability values lie in between 0 and 1 and the sum of all the probabilities is unity. If the assumptions of a probability distribution are invalid, then the obtained results will be inaccurate.
