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.
An interesting (but oversimplified) model of an atom pictures an electron "in orbit" around a proton. Suppose this electron is moving in a circular orbit of radius 0.5 nm and the force that makes this circular motion possible is the electric forc
Determine the maximum centric force which can be applied is the allowable normal stress is 160 MPa in the steel and 18 MPa in the concrete where length = 1.5m and Diameter = 450mm.
After walking across a dry carpet, there's a potential difference of 5500 V between your hand and the doorknob. As you reach toward the knob, a spark jumps, releasing energy 1.0 mJ. a) How much charge was transferred?
We will take a random sample of 50 American adults and ask them if they agree with the statement. Then the sampling distribution of the sample proportion of people who answer yes to the question is:
Air is used in a carnot cycle as a working substance. Determine the efficiency of the cycle if as a result of an adiabatic expansion: a) the volume of the gas doubles. b) the pressure of the gas halves.
The distribution of the amount of money in savings accounts for University of Alabama students has an average of 950 dollars and a standard deviation of 1,000 dollars.
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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