3 ms·

I honestly don't understand what they are plotting: > So for example, the 74th-%tile in Competition among Hardcore gamers means that the average Hardcore gamer

I honestly don't understand what they are plotting: > So for example, the 74th-%tile in Competition among Hardcore gamers means that the average Hardcore gamer scores higher on Competition than 74% of the gamers in the full data set. But together casual and core make up 78 % of the sample, so that the some hardcore gamers must have scores lower than the "hardcore average". Those hardcore gamers only make up 4% of the total sample, which means that 0.04/0.21 = 0.19 -> 19 % of hardcore gamers score lower than the hardcore average! That's so skewed an arithmetic average is clearly of little use, but at the same time they talk about percentiles, so I don't know what's happening here, did they take the sample average and pretended it's the median?

deleted 8y ago
[deleted]
ekiru 8y ago
Aren't you assuming (probably incorrectly) that all hardcore gamers rated Competition more highly than all core/casual gamers? I'm not sure how much less weird allowing for that makes things, but your reasoning for concluding that hardcore gamers with lower Competition scores than the hardcore average make up only 4% of the sample isn't valid. For example, if half of the hardcore gamers (around 10.5% of the sample) are above the hardcore average and half below, that would put about 81% of the nonhardcore gamers (about 63.5% of the full sample) below the hardcore average and the rest above (about 19% of the full sample).