Random samples of size 2 are taken from a population of numbers 2,4,6, 7 and 8. Compute for the population mean.
The population mean:
μ=∑xiN=2+4+6+7+85=5.4.\mu=\cfrac{\sum x_i}{N}=\cfrac{2+4+6+7+8}{5}=5.4.μ=N∑xi=52+4+6+7+8=5.4.
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