# Talk:Dyatlov Pass incident

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## Lone survivor?

In the background section the following is stated: Yudin, the lone survivor, postulated that "Dyatlov probably did not want to lose the altitude they had gained, or he decided to practice camping on the mountain slope."[2] This survivor is never mentioned again in the rest of the article and later on it is said that [t]here were no survivors of the incident.

Sorry, I see this was addressed previously.

## The Birthday Puzzle

Of the ten who set out on the training hike up Kholat Syakhl, one had a birthday on the day of their deaths, February 2; two others within several days of February 2; and three others had had a birthday three weeks prior (January 11, 12 and 13). That's six out of ten. This fact yields no immediate conclusion. Lyudmila Dubinina, Nicolai Thibeaux-Brignolles, Yuri Yudin, and Alexander Kolevatov were the others with distant birthdays. Perhaps they were invited along to round out the crew. The odds are quite low that a randomly selected group of people would have six out of ten members with birthdays within three weeks on either side of the trip, 0.00014%. Simple calculation of statistics will reproduce this number. These odds almost certainly prove that the selection of persons was for a birthday celebration. Did they decide to celebrate on Zolotaryov's birthday? Can this certainty contribute to understanding the mystery? Steve (talk) 01:03, 12 September 2017 (UTC)

I don't think you've got your maths right. Take a look at https://www.mathsisfun.com/data/probability-shared-birthday.html Whilst this problem is different, the method would point you to a much less unlikely answer.ThoughtIdRetired (talk) 11:04, 12 September 2017 (UTC)
Well, the searchers who found the tent said they found an untouched bottle of alcohol and immediately drank almost all of it, because "they felt too cold". Would you drink it in such a situation? --Yomal Sidoroff-Biarmskii (talk) 03:53, 6 June 2018 (UTC)

## Date Formatting

This article currently uses dmy and mdy dates inconsistently, with dmy dates present predominantly in the first sections of the article and the references, and mdy in other places. Although the article has ties to Russia, Russia does not speak English, so I feel that Wikipedia:Manual of Style/Dates and numbers § Strong national ties to a topic is not applicable. However, as per Wikipedia:Manual of Style/Dates and numbers § Retaining the existing format, it seems that mdy should be used because this was the format used by the first major contributor (starting April 6, 2006), and was used thereafter in the article's body until an edit on November 2, 2017, changed the format of some of the dates. With the original format and the format in most of this article's history being mdy, I think that is probably what should be used, but since a significant portion of the article and its references currently uses dmy dates, I wanted to ask to see if a consensus can be reached.ChromeGames923 (talk) 23:03, 19 July 2018 (UTC)