Percent of data
Consider a set of test grades with a mean of 80 and a standard deviation of 3. Use Chebyshev's Theorem to find the percent of data that would fall between 74 and 86.
A. at least 88.9%
B. 100%
C. at least 75%
D. at least 93.8%
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In the sum A + B = C, vector A has a magnitude of 11.0 m and is angled 33.5° counterclockwise from the +x direction, and vector C has a magnitude of 15.0 m and is angled 21.5° counterclockwise from the -x direction. What are the magnitude
Five people get on an elevator that stops at five floors. Assuming that each has an equal probability of going to any one floor, find the probability that they all get off at different floors.
Air at 35C, 1 atm and 50% relative humidity enters a dehumidifier operating at steady state. Determine the heat transfer from the moist air, in KJ per Kg of dry air.
Ethanol (C2H5OH) melts at?114°C and boils at 78°C. The enthalpy of fusion of ethanol is 5.02 kJ/mol, and its enthalpy of vaporization is 38.56 kJ/mol. The specific heats of solid and liquid ethanol are 0.97 J/g-K and 2.3 J/g-K
A cylindrical shell of radius 9 cm and length 297 cm has its charge density uniformly distributed on its surface. The electric field intensity at a point 20.1 cm radially outward from its axis (measured from the midpoint of the shell) is 47700 N/C
Suppose there are only three candidates and she follows the following strategy. She rejects the first candidate and then selects the next candidate that is better than those already interviewed?
Calculate the amount of isopentyl acetate that should be present in the reaction mixture at equilibrium based on 300 mmol of acetic acid and 150 mmol of isopentyl alcohol as starting quantities.
A snowball rolls off a barn roof that slopes downward at an angle of 40.0 degrees. The edge of the roof is 14.0 meters above the ground, and the snowball has a speed of 7.00 m/s as it rolls off the roof. Ignoring air resistance, how far from the e
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