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?

Mai and chuck have been divorced since 2012. they have three boys, ages 6, 8, and 10. all of the boys live with mai and she receives child support from chuck. mai and chuck both work and the boys need child care before and after school. te boys attend the fun house day care center and mai paid them $2,000 and chuck paid them $3,000. mai's agi is $18,000 and chuck's is $29,000. mai will claim two of the boys as dependents. she signed form 8332 which allows chuck to claim one of the boys. who can take the child and dependent care credit?

The assumptions of the production order quantity model are met in a situation where annual demand is 3650 units, setup cost is $50, holding cost is $12 per unit per year, the daily demand rate is 10 and the daily production rate is 100. the production order quantity for this problem is approximately:

Robert is a district manager who oversees several store managers in a national chain of restaurants. robert reports directly to the vice president of stores and marketing, a member of top management. robert is a middle manager.t/f