StoryQuest · Mission 067

Mathematics · Explorer

1/4
Live relationshipxˉ=∑xn\bar{x} = \frac{\sum x}{n}
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.DATA BALANCING BOARDTUNINGMEAN 52.38 MM

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.

Narrative feed

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

Five days read 38, 56, 72, 64 and 44 mm. The month must average 55 mm, and the missing day is logged wrong.