Mathematics · Explorer

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Mean and medianRunning
Data balancing board. Missing day rainfall at 8 mm. Sample mean 47 mm, Required mean 55 mm. Currently sample mean is short by 8 mm.TUNINGMEAN 52.38 MM
t = 0.0s

Sample mean

47mm

Required mean

55mm

8 mm

Data balancing board. Missing day rainfall at 8 mm. Sample mean 47 mm, Required mean 55 mm. Currently sample mean is short by 8 mm.

What has to balancexˉ=∑xn\bar{x} = \frac{\sum x}{n}

What is happening

You are called to a rainfall station filing a monthly average with one day missing.

The month will not average out. Five days read 38, 56, 72, 64 and 44 mm, the month must average 55 mm, and the missing day is logged wrong.