In September, demand for industrial furnace boilers at a large plumbing supply warehouse has a mean of

Question:

In September, demand for industrial furnace boilers at a large plumbing supply warehouse has a mean of 7 boilers with a standard deviation of 2 boilers. The warehouse pays a unit cost of $2,225 per boiler plus a fee of $500 per month to act as for these boilers. Boilers are sold for $2,850 each.
Find the mean and standard deviation of September pro t (revenue minus cost). Dealer
A dealer in the securities market is an individual or firm who stands ready and willing to buy a security for its own account (at its bid price) or sell from its own account (at its ask price). A dealer seeks to profit from the spread between the...