# Question

Refer to Exercise 8.9. The operations manager labels any week that is in the bottom 20% of production a “bad week.” How many metric tons should be used to define a bad week?

## Answer to relevant Questions

A random variable has the following density function.f(x) = 1 − .5x 0 < x < 2a. Graph the density function.b. Verify that f(x) is a density function.c. Find P(X > 1).d. Find P(X < .5).e. Find P(X = 1.5).X is normally distributed with mean 1,000 and standard deviation 250. What is the probability that X lies between 800 and 1, 100?Refer to Exercise 8.42. Some Internet sites have bandwidths that are not sufficient to handle all their traffic, often causing their systems to crash.Bandwidth can be measured by the number of hits a system can handle. How ...The number of pages printed before replacing the cartridge in a laser printer is normally distributed with a mean of 11,500 pages and a standard deviation of 800 pages. A new cartridge has just been installed.a. What is the ...The census referred to in the previous exercise also reported that college-educated Canadians earn on average $41,825. Suppose that incomes are normally distributed with a standard deviation of $13,444.Find the probability ...Post your question

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