[OC] Christmas Homicides in CaliforniaSubmitted by academiaadvice t3_zugt42 in dataisbeautiful
bigsanity t1_j1j7tlj wrote
Why is it going up and down?
NotEnoughWave t1_j1jst8y wrote
Because there's always a random component to any single piece of data. That random component gets smoothed out when you take averages.
bigsanity t1_j1ju9a3 wrote
Im talking about the red one
Trueslyforaniceguy t1_j1lhfdl wrote
That’s the actual count on Christmas Day, year by year. It’s a different number each year.
[deleted] t1_j1k8fxa wrote
[removed]
navidshrimpo t1_j1lp735 wrote
Between any given day, the amount of murders that happen is going to fluctuate a lot due to the relative rarity of murders. If you average lots of these days, or 365 of them in the case of a year, it converges toward an average.
You can think of each day as a "sample". Lots of days is a larger sample. This convergence is explained by the central limit theorem.
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