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A retailer purchases a batch of 1000 fluorescent lightbulbs from a wholesaler at a cost of $2 per bulb. The wholesaler agrees to replace each defective bulb with one that is guaranteed to function properly for a charge of $0.20 per bulb. The retailer sells the bulbs at a price of $2.50 per bulb and gives his customers free replacements if they bring defective bulbs back to the store. Let X be the number of defective bulbs in a typical batch, and assume that the mean and standard deviation of X are 50 and 10, respectively.
a. Find the mean and standard deviation of the profit (in dollars) the retailer makes from selling a batch of lightbulbs.
b. Find an interval with the property that the retailer can be approximately 95% sure that his profit will be in this interval.
What percent of the cruises will have 1,970 passengers or more? What percent of the cruises will have 1,600 or fewer passengers? How many passengers are on the cruises with the fewest 25 percent of passengers?
Find the probability that the coin turns up heads once and tails once?
Half angle formula to find the exact value.
If there 5 sections of Discrete Math with a total enrollment of 31 students, what is the smallest possible number of students in the section with the largest enrollment?
Question babsed on wff-formation rules. Let L be a language whose wff-formation rules are the following..
Reals with the "finite complement topology:" U open in X if U - X is finite or is all of X. Why compact? Why not regular? Reals with the "countable complement topology:" U open in X if X - U is countable or is all of X. Why not compact? Why not regul..
Give five interesting facts about group theory (or tensor calculus). Each one need only be 1 to just a few sentences - please list separately and under each fact provide any links to websites or pictures etc.
A company makes two soft drinks A and B. Each liter of A requires 4 hours processing and 4 hours distillation while each liter of B requires 5 hours processing and 3 hours distillation.
Effectiveness of a disease management program
Calculate the coefficient of determination
Let E be an open and convex subset of R^n and let f in C^1(E). Show that f satisfies the Lipschitz condition on E if and only if its derivative Df is bounded on E, that is, there exists a constant M => 0 such that the norm of
A large storage tank, open to the atmosphere at the top and filled with water, develops a small hole in its side at a point 16.0 m below the water level.
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