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In a certain city the daily consumption of water (in millions of liters) is a random variable whose probability density is given by
What are the probabilities that on a given day
(a) the water consumption in this city is no more than 6 million liters;
(b) the water supply is inadequate if the daily capacity of this city is 9 million liters?
Team Sports Inc. sells sporting goods to high schools and colleges via a nationally distributed catalogue. Management at Team Sports estimates it will sell 2000 Wilson Model A2000 catcher’s mitts next year.
Design a compensator Gc(s) so that the steady-state tracking error to a ramp input is zero and the settling time (with a 2% criterion) is less than 5 seconds. Obtain the response of the closed-loop system to the input R(s) = 1/s2 and verify that t..
With reference to Exercise 39, show that for normal distributions κ2 =σ2 and all other cumulants are zero.
a researcher has developed a new drug designed to reduce blood pressure. in an experiment 21 subjects were assigned
for each of the cases below involving areas under the standard normal curve decide whether the first area is bigger the
Undergraduates at her college and mails a questionnaire to 250 students selected at random. Only 104 questionnaires are returned. what is the population.
Construct a bar and pie chart to graphically display these data by using Microsoft excel.
the portion of people aged 18 - 25 who currently use illicit drugs is equal to 0.20 or 20.now express the null
suppose babsie generated the following probability distribution px 5 .25 7 .30 10 .25 12 .05 15.is this probability
After these additives are mixed, an equal amount of base is added for each color. The company currently has 1000 gallons of A1, 1500 of A2, 2000 of A3, and 4000 of base. Given that the selling price per gallon for each type on ink is the same, for..
One-half of a sample receives an incentive in a mail survey. The other half does not. A comparison of response rates is desired.
a bank with branches in a large metropolitan area is considering opening its offices on saturday but it is uncertain
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