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A coffee distributes randomly polled 200...

A coffee distributes randomly polled 200 employees from each of two companies and asked each employee how many cups of coffee he or she drinks per day. The data is shown in the table below.

The are 4,000 employees at Company X and 3,000 employee at Company Y.
Q. What is the difference between the expected total number of employees who drink 1 cup of coffee at Company X and the expected total number of employees who drink 1 cup of coffee at Company Y?

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