gabv6018 gabv6018

30-10-2017
Mathematics

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A population consists of 200 elements. we want to draw a simple random sample of 40 elements from this population. on the first selection, the probability of an element being selected is

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jamiexx jamiexx

30-10-2017

The way to calculate probability is

Probability (event) = number of outcome favorable to event / total number of possible outcome

So we substitute the numbers in
P (an element selected) = 40/200
Now simplify the fraction.
Answer = 1/5

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