Question

definition weighted mean​

Answer 1

Answer:

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The weighted mean involves multiplying each data point in a set by a value which is determined by some characteristic of whatever contributed to the data point. In this way, larger studies would be making a greater contribution to the mean effect size.

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Answer 2

Answer:

The weighted arithmetic mean is similar to an ordinary arithmetic mean, except that instead of each of the data points contributing equally to the final average, some data points contribute more than others

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