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Question: Professor Dipsy Doodle gives six problems on each exam. Each problem requires an average of 30 minutes grading time for the entire class of 15 students. The grading time for each problem is exponentially distributed, and the problems are independent of each other.
(a) What is the probability that the Professor will finish the grading in 2½ hours or less?
(b) What is the most likely grading time?
(c) What is the expected grading time?
Explain how to solve linear homogeneous recurrence relations of degree 2.
A building has a rectangular base with opposite corners at (1,5) and (3,7). The roof is the graph of f(x,y)=x cos(y)+x+1 . What is the volume of the building and what is the average height of the building?
In a tank containing 100 gallons of fresh water, 10 lbs of salt was added instead of 20 lbs. To correct the mistake, fresh water was added at the rate of 3 gallons per minute while draining off the well stirred salt solution from the tank at the s..
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If he does not get the pill, the probability that he will die is ?. Mr. Brown died. What is the probability that the nurse forgot to give Mr. Brown the pill?
the total mass of 1 packet of sugar and 1 packet of flour is 230g .the total mass of 1 packet of sugar and 1 packet of
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Find a, b, and c, correct to two decimal places, and thus the model for Mumbai. Use your model to determine the length of longest day of the year in Mumbai (correct to the nearest hundredth of an hour).
Compute the population vectors xk for k = 1,,,,,,,,20. Discuss what you find.
a baseball diamond had the shape of a square with sides of 90 feet long. A player hits the ball and runs tower first base with a speed of 24 feet per second. At what rate is the player distance from the third base changing when the player is halfw..
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