Mobile Phones Sales
After analyzing sales data,the owner of a Mobile Phone store produced the following joint probability distribution of the number of iPhones (X)and Blackberries (Y)sold daily.
-{Mobile Phones Sales Narrative} Compute the variance of the number of Blackberries sold daily.

Question

Mobile Phones Sales 
After analyzing sales data,the owner of a Mobile Phone store produced the following joint probability distribution of the number of iPhones (X)and Blackberries (Y)sold daily.  ​ ​
-{Mobile Phones Sales Narrative} Compute the variance of the number of Blackberries sold daily.

Quizplus · Accepted Answer

The Answer of Mobile Phones Sales 
After analyzing sales data,the owner of a Mobile Phone store produced the following joint probability distribution of the number of iPhones (X)and Blackberries (Y)sold daily.  ​ ​
-{Mobile Phones Sales Narrative} Compute the variance of the number of Blackberries sold daily.