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A town has 500 real estate agents. The mean value of the properties sold in a year by these agents is $800,000 and the standard deviation is $300,000. A random sample of 100 agents is selected, and the value of the properties they sold in a year is recoreded.a. What is the standard error of the sample mean?b. What is the probability that the sample mean exceeds $ 825,000?c. What is the probability that the sample mean exceeds $ 780,000?d. What is the probability that the sample mean is between 790,000 and 820,000?
a pitcher throws a horizontal fastball with a velocity of 34 m/s to the left. The batter hits the baseball horizontally to the right with a speed of 52 m/s. How much work is done on the baseball by the bat
A 5.00 mL syringe has an inner diameter of 6.00 mm, a needle inner diameter of 0.210 mm, and a plunger pad diameter (where you place your finger) of 1.2 cm. A nurse uses the syringe to inject medicine into a patient whose blood pressure is 140/100..
A stone thrown horizontally from a height of 6.22 m hits the ground at a distance of 14.30 m. find the speed of the stone as it hits the ground
An inductor (L = 400 mH), a capacitor (C = 4.43 µF), and a resistor (R = 500 ?) are connected in series. Calculate the required maximum voltage
Eris, the largest known dwarf planet in the Solar System, has a radius R = 1200 km and an acceleration due to gravity on its surface of magnitude g = 0.77 m/s2. Use these numbers to calculate the escape speed from the surface of Eris
A generator connected to an RLC circuit circuit has an rms voltage of 120 V and an rms current of 34 mA. what is the inductive reactance of the circuit
A pulse from a ruby laser (lambda = 694.3 nm) has an average power of 80 MW and lasts 4.1 ns. what is the total energy of the pulse
1.travelocity would like to estimate the current average domestic airfare. the following data shows the airfares for 24
A particular Bohr orbit in a hydrogen atom has a total energy of -0.54eV. What is the electric potential energy of the system
LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it. What is the power of one laser pulse
vector a points in the negative y direction and has a magnitude of 4 units. vector b has three times the magnitude and
A beam of light is incident from air on the surface of a liquid. find the critical angle for the liquid when surrounded by air
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