which-of-these-best-describes-the-meaning-of-x-and-how-its-value-is-found

Question

Which of these best describes the meaning of x̄̄ and how its value is found?

Accepted Answer

It is the mean of multiple sample means, calculated as $\overset{ˉ}{\overset{ˉ}{x}} = \frac{\sum \overset{ˉ}{x}}{k}$ .

Answer

It is the range of sample means, calculated by subtracting the smallest from the largest.

Answer

It is the mean of all individual data points across all samples, calculated as $\overset{ˉ}{\overset{ˉ}{x}} = \frac{\sum \overset{ˉ}{x}}{k}$ .

Answer

It is the median of all sample means, found by ordering them and selecting the middle value.