Question: How many transactions? Continue with the data of the previous exercise. You will need to have filled in the last row of the table to

How many transactions? Continue with the data of the previous exercise. You will need to have filled in the last row of the table to complete this exercise.

(a) Make a probability histogram for the number of transactions per client. The vertical scale should measure the proportion of clients requesting each number of transactions.

(b) Calculate the mean number of transactions per client for this firm. Mark the mean on the probability histogram you made in part (a).

(c) Calculate the variance and the standard deviation of the number of transactions per client for this firm. What are the units of measure for the variance? What are the units of measure for the standard deviation?

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