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From: William Hughes on 21 Apr 2010 00:21 On Apr 20, 9:10 pm, Herc7 <ozd...(a)australia.edu> wrote: > What's the probability of having the same time on two different > clocks? > 1.0 Just take two clocks that are in sinc with the same standard clock. Of course one could interpret the question as "if we choose two clocks at random what is the probability that they will show the same time" If we assume that the minute hands have 60 distinguishable positions, and the hour hands 12, and that the distributions of times are uniform and independent, then the probability is 1/720. In actuality, neither stopped clocks (there is a spike at 10 to 2) nor running clocks (depending on time zone they are usually very close or very far apart) are uniform and independent. Nor does the above discussion take into account digital clocks, or clocks with second hands, or clocks with more than 60 distinguishable positions or ... - William Hughes
From: Duggy on 21 Apr 2010 02:57 On Apr 21, 4:21 am, William Hughes <wpihug...(a)hotmail.com> wrote: > On Apr 20, 9:10 pm, Herc7 <ozd...(a)australia.edu> wrote: > > > What's the probability of having the same time on two different > > clocks? > > 1.0 Just take two clocks that are in sinc with the same > standard clock. > > Of course one could interpret the question as "if we choose > two clocks at random what is the probability that they will > show the same time" If we assume that the minute > hands have 60 distinguishable positions, and the hour hands 12, > and that the distributions > of times are uniform and independent, then the probability is > 1/720. In actuality, neither stopped clocks (there is a spike > at 10 to 2) nor running clocks (depending on time zone they are > usually very close or very far apart) are uniform and independent. > Nor does the above discussion take into account digital clocks, or > clocks with second hands, or clocks with more than 60 distinguishable > positions or ... "The same time" doesn't require distinguishable positions, just the person's view of those positions. If I see a fraction before 6:31 as 6:31 and I see a fraction after 6:31 as 6:31 then the time is the same. Digital is the same except that they usually show am or pm whereas analogue don't always. === = DUG. ===
From: Brad on 21 Apr 2010 05:47 On Apr 21, 7:15 pm, Herc7 <ozd...(a)australia.edu> wrote: > But actually I was just making fun of myself, if I see the time 3:14 I > think it's a sign, and if I see it on a second clock straight away I > think WOW it REALLY is a sign! Doh > > Herc yeah, it's a sign that the time is 3.14
From: Herc7 on 21 Apr 2010 06:21 On Apr 21, 7:47 pm, Brad <goog...(a)vk2qq.com> wrote: > On Apr 21, 7:15 pm, Herc7 <ozd...(a)australia.edu> wrote: > > > But actually I was just making fun of myself, if I see the time 3:14 I > > think it's a sign, and if I see it on a second clock straight away I > > think WOW it REALLY is a sign! Doh > > > Herc > > yeah, it's a sign that the time is 3.14 every time you happen to look at a clock? well not every time, but 10 times more often than any other time, 10:47 is a common time I see aswell. Perfect 10 (Eve) for Agent 7 (Adam) Yeh I know it's a pycholomagical phenomenon I just happen to notice my favorite numbers more. Herc
From: Pink Freud on 21 Apr 2010 07:17
"Herc7" <ozdude(a)australia.edu> wrote in message news:7571709c-07c4-47f3-a37f-524d2d9db5a1(a)c2g2000pre.googlegroups.com... > On Apr 21, 7:47 pm, Brad <goog...(a)vk2qq.com> wrote: >> On Apr 21, 7:15 pm, Herc7 <ozd...(a)australia.edu> wrote: >> >> > But actually I was just making fun of myself, if I see the time 3:14 I >> > think it's a sign, and if I see it on a second clock straight away I >> > think WOW it REALLY is a sign! Doh >> >> > Herc >> >> yeah, it's a sign that the time is 3.14 > > > every time you happen to look at a clock? > > well not every time, but 10 times more often than any other time, > 10:47 is a common time I see aswell. Perfect 10 (Eve) for Agent 7 > (Adam) > > Yeh I know it's a pycholomagical phenomenon I just happen to notice my > favorite numbers more. > Ya THINK??! |