Mean of a sample
A statistics problem from Statisticsdrill. Solve it with one answer box, with a fresh sample on every attempt and the worked steps and spreadsheet function in the answer, and it is checked the moment you submit.
The task
An analyst records 7 minutes to resolve a support ticket (minutes): 46, 35, 28, 23, 26, 17, 29. What is the mean? Round to 2 decimal places.
What this problem teaches
The formula: x̄ = Σx / n.
A hint if you get stuck
Add all the values, then divide by how many there are.
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