In statistics, what is the benefit of taking a sample survey rather than a census?
Taking a sample survey is quicker, cheaper and easier to carry out than a census.
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All answers ▸The complex number -2sqrt(2) + 2sqrt(6)I can be expressed in the form r*exp(iTheta), where r>0 and -pi < theta <= pi. By using the form r*exp(iTheta) solve the equation z^5 = -2sqrt(2) + 2sqrt(6)i.
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