Car Sales
The joint probability distribution of variables X and Y is shown in the table below.Rebecca and Rachel are car salespeople.Let X denote the number of cars that Rebecca will sell in a month,and let Y denote the number of cars Rachel will sell in a month.
-{Car Sales Narrative} Calculate E(X + Y)directly by using the probability distribution of X + Y.

Question

Car Sales 
The joint probability distribution of variables X and Y is shown in the table below.Rebecca and Rachel are car salespeople.Let X denote the number of cars that Rebecca will sell in a month,and let Y denote the number of cars Rachel will sell in a month.  ​ ​
-{Car Sales Narrative} Calculate E(X + Y)directly by using the probability distribution of X + Y.

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The Answer of Car Sales 
The joint probability distribution of variables X and Y is shown in the table below.Rebecca and Rachel are car salespeople.Let X denote the number of cars that Rebecca will sell in a month,and let Y denote the number of cars Rachel will sell in a month.  ​ ​
-{Car Sales Narrative} Calculate E(X + Y)directly by using the probability distribution of X + Y.

Car Sales The Joint Probability Distribution of Variables X and Y Is