Proportion of earnings
Weakly earnings on a certain import venture are approximately normally distributed with a known mean of 219 and unknown standard deviation. If the proportion of earnings over 291 is 0.155, find the standard deviation.
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Find two values of the normal random variable with mean 73 and standard deviation 8 lying symmetrically on either side of the mean and covering an area of 77% between them. A.75.336, 70.664 B.66.768, 79.232 C.63.4, 82.6 D.67.088, 78.912
The mean gas mileage for a hybrid car is 56 miles per gallon. Suppose that the gasoline mileage is approximately normally distributed with a standard deviation of 3.3 miles per gallon.
A point charge of 5 µC is located at x = -3.0 cm, and a second point charge of -9 µC is located at x = +4.0 cm. Where should a third charge of +6.0 µC be placed so that the electric field at x = 0 is zero?
The annual assets for First Michigan corporation is aproximately normally distributed with standard deviation 50. The mean is not known. However it is known that 2.5 percent of the assets is over 318.00 million. Find the mean assets value.
What is the temperature at the junction between the two bars? What is the total rate of heat conduction?
The oil properties are Density, p = 900 kg/m3, cp = 2000 J/kg K, and (mu) u = 0.765 N s/m2. Calculate the pressure drop, the flow work, and the temperature rise caused by the flow work.
A game consists of flipping a coin repeatedly until two heads or two tails are obtained. Assume that flips are independent and that at each flip P(H) = 0.6 and P(T) = 0.4. Define the random variable Y = flip number on which the game ends.
Bill steps off a 3.4 m high diving board and drops to the water below. At the same time, Ted jumps upward with a speed of 3.9 m/s from a 1.0 m high diving board. Choosing the origin to be at the water's surface, and upward to be the positive x dir
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