The revenue (X) from the sales of a compay has an expected value of $7,263, with a standard deviation of $495 while the cost (Y) has an expected value of $3,175, with a standard deviation of $231. The covariance between the revenue and cost is 1,691. What is the variance of the profit (X-Y) of the company?

answer: tell me how

explanation:

muslims control the north africa during the period of 1500 up

to 1800. they made a barrier to prevent further european exploration from

entering the africa from the north. however, the dutch ware still able to move

toward the interior with having south africa as one of the routes leading to

the east for trading with asia.

answer; /// radio frequency identification;