Question: Compute the covariance in the case from Section 7.1, Exercise 36. Suppose immigration and emigration change the sizes of two populations with the following probabilities.

Compute the covariance in the case from Section 7.1, Exercise 36.
Suppose immigration and emigration change the sizes of two populations with the following probabilities.

Let Ia represent the change in population a and Ib the change in population b.

Population a Population b Number Probability Number Probability 0.1 0.3 0.2 0.4 0.4

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