Standard deviation and step-by-step method
The top nine scores on a test are as follows:
24, 28, 30, 37, 44, 49, 49, 53, 63
Please find the standard deviation and show your step-by-step method.
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Air enters a set of these nozzles at 200 psia and 695 degrees F with a velocity of 46 ft/s and exits at 145 psia and 650 F. calculate the velocity at the exit of the nozzles.
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Four identical metallic objects carry the following charges: +1.0 µC, +5.0 µC, -6.6 µC, and -8.0 µC. The objects are brought simultaneously into contact, so that each touches the others. Then they are separated. (a) What is
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