On Saturday, 16 September 2017 07:54:48 CEST Nicolás Alvarez wrote: > 2017-09-15 4:27 GMT-03:00 Volker Krause <vkra...@kde.org>: > > On Friday, 15 September 2017 05:23:44 CEST Nicolás Alvarez wrote: > >> From Mozilla documentation: "So when you say '63% of beta 53 has > >> Firefox set as its default browser', make sure you specify it is 63% > >> of *pings*, since it is only around 46% of clients. (Apparently users > >> with Firefox Beta 53 set as their default browser submit more > >> main-pings than users who don't)." > > > > That is something else though, that's the participation ratio on opt-in. > > Measuring that and determining its bias on the submitted data is indeed a > > challenge, but I don't see how unique ids help with that? > > It has nothing to do with participation ratio; Firefox betas have > opt-out telemetry. > > 63% of Firefox Beta 53 telemetry records (which Mozilla calls "pings") > say it was set as the default browser. If you deduplicate using client > ID, it turns out 46% of distinct Firefox Beta 53 clients had it set as > the default browser. Thus, for some reason users who set it as the > default browser send a more frequent telemetry than those who didn't, > perhaps because they use the browser more.
Ah, sorry, I misunderstood this then. Deduplication in should work in this case with the time-based approach too I think. Regards, Volker
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