tag:blogger.com,1999:blog-1086109446112192763.post6508968380551727563..comments2023-08-03T16:29:59.074+08:00Comments on Just observations...: Coincidence and ProbabilityFadhilhttp://www.blogger.com/profile/14091828414987087822noreply@blogger.comBlogger32125tag:blogger.com,1999:blog-1086109446112192763.post-74894912204469978512009-12-24T01:12:53.279+08:002009-12-24T01:12:53.279+08:00Andrea,
Aah.. now why didn't I think of that,...Andrea,<br /><br />Aah.. now why didn't I think of that, all those years ago...Fadhilhttps://www.blogger.com/profile/14091828414987087822noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-80987009093117488942009-12-24T00:26:03.006+08:002009-12-24T00:26:03.006+08:00anne,
The day will come soon enough when you'...anne,<br /><br />The day will come soon enough when you'll meet somebody who was also born on 19th July. As the Michael Jackson song goes... You are not alone.<br /><br />Kira 6th and 19th dah tak jauh la tu...Fadhilhttps://www.blogger.com/profile/14091828414987087822noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-34635641381432913462009-12-23T23:44:06.151+08:002009-12-23T23:44:06.151+08:00Mr Oldstock, you may be interested to know that th...Mr Oldstock, you may be interested to know that this is one neat trick which Maths/Stats students love to play on the innocents and impressionables to get free drinks at the bar. :)Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-16144178834210378612009-12-23T22:00:43.534+08:002009-12-23T22:00:43.534+08:00Hello! Calling for 19th July, anyone?
Seriously O...Hello! Calling for 19th July, anyone?<br /><br />Seriously Oldstock, I've yet to meet many born on the same day as me. So far I've met only one and that is my sister's neighbor. Why is that? Is it that I don't mingle enough? <br /><br />We should start a count for those born in July...seems like blogging is a favorite pastime!anneazizhttps://www.blogger.com/profile/06892118941344522969noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-22133026598765499732009-12-23T19:13:57.893+08:002009-12-23T19:13:57.893+08:00Masjunaida,
Welcome to the blog... that contains ...Masjunaida,<br /><br />Welcome to the blog... that contains useful and useless info all the same, heheheh.<br /><br />Theoretically, to get 100% odds, then you need 365+1=366 persons. Meaning to say that in a random gathering of 366 people, we can definitely find at least two persons sharing the same birthday, because if by some stroke of luck, the first 365 persons all have different birthdays, then the 366th person must surely have the same birthday as one of the others.<br /><br />But we need not go that far to reach very favourable odds. If you take a look at the graph I copied from Wiki, by the time we have 60 people, the odds are already 99.9%.<br /><br />Hope I have not bored you with this explanation.Fadhilhttps://www.blogger.com/profile/14091828414987087822noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-24888201686322479052009-12-23T19:02:28.318+08:002009-12-23T19:02:28.318+08:00Lady,
Tq. Memang dah lama jadi geek pun... cuma s...Lady,<br /><br />Tq. Memang dah lama jadi geek pun... cuma sekali sekala kalau nampak macho pun best gak kan :-)Fadhilhttps://www.blogger.com/profile/14091828414987087822noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-77517769307982755242009-12-23T19:00:37.405+08:002009-12-23T19:00:37.405+08:00Pakmat,
You are like my father, no birth cert. So...Pakmat,<br /><br />You are like my father, no birth cert. So the whole year is your birthday.Fadhilhttps://www.blogger.com/profile/14091828414987087822noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-14440753327236575192009-12-23T18:59:03.347+08:002009-12-23T18:59:03.347+08:00Pat,
We are July babes... always cool.Pat,<br /><br />We are July babes... always cool.Fadhilhttps://www.blogger.com/profile/14091828414987087822noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-80575960898067896142009-12-23T18:35:08.377+08:002009-12-23T18:35:08.377+08:00Lee,
Don't worry about the candles on your bi...Lee,<br /><br />Don't worry about the candles on your birthday cake... the heat would keep you warm in the cold Canadian nights, heheheh. Season's greetings to you too.Fadhilhttps://www.blogger.com/profile/14091828414987087822noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-40349833950961903872009-12-23T18:33:23.454+08:002009-12-23T18:33:23.454+08:00Aizan, alaa... baru sikit je tu.Aizan, alaa... baru sikit je tu.Fadhilhttps://www.blogger.com/profile/14091828414987087822noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-43236517432391042822009-12-23T18:32:36.019+08:002009-12-23T18:32:36.019+08:00Tommy,
Put $5 on Oz and $1 on Spain... good luck ...Tommy,<br /><br />Put $5 on Oz and $1 on Spain... good luck :-)Fadhilhttps://www.blogger.com/profile/14091828414987087822noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-37476501084109008802009-12-23T15:18:58.954+08:002009-12-23T15:18:58.954+08:00Hi,
Interesting article this one !
So does the ...Hi, <br /><br />Interesting article this one !<br /><br />So does the theory also say what is the minimum number of people needed within a group so that the odds of finding any two who have the same birthday becomes 100%?masjunaidanoreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-59013416190451981552009-12-22T20:32:20.306+08:002009-12-22T20:32:20.306+08:00Ok...in my book, you are now officially a geek!
A...Ok...in my book, you are now officially a geek!<br /><br />And that's a compliment =)Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-35593350361308636102009-12-22T19:52:59.452+08:002009-12-22T19:52:59.452+08:00..fascinating..and what are the odds of finding tw.....fascinating..and what are the odds of finding two persons who doesn't have a birthday..? like me..? there's no documentation to my birth..:)Anonymoushttps://www.blogger.com/profile/18068291687504013148noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-81211556110222823552009-12-22T09:13:03.733+08:002009-12-22T09:13:03.733+08:00I'm not really one for numbers, but this post ...I'm not really one for numbers, but this post was fascinating, just the same. In my family of six, my mum and one sister share the same birthday. Cool, eh? Though it can't have been fun for my mum, all those years ago, to spend her birthday in a hospital!<br /><br />You and I share a birth <i>month</i>, which is easier, as there are only 12 months. And I was six when you were born!Pathttps://www.blogger.com/profile/10795820209657289652noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-49320260950972210312009-12-22T07:58:56.716+08:002009-12-22T07:58:56.716+08:00Hi Old Stock, very interesting. Maths not one of m...Hi Old Stock, very interesting. Maths not one of my good sides, ha ha....but it sure is nice to know.<br />For me, not too keen on birthdays. <br />Sebelum 15 years okay....today the candles cost more than the cake, ha ha.<br />Wishing you the best of Seasons greetings, Lee. Leehttps://www.blogger.com/profile/00659078775260068702noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-76739552527206961102009-12-21T21:35:23.171+08:002009-12-21T21:35:23.171+08:00Too much maths....Too much maths....Aizan Suhairahttps://www.blogger.com/profile/03455257353307938659noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-56910905028511062062009-12-21T19:53:40.979+08:002009-12-21T19:53:40.979+08:00Wah u r good; they've revised it according to ...Wah u r good; they've revised it according to ur guess at 101:1 for Oz, 5.50:1 for Spain; Brazil 6:1, England 6.50:1. NZ & N.Korea at 1001:1....maybe can put $1 on them hahaha.Tommy Yewfigurehttps://www.blogger.com/profile/12417405409281770347noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-6662312645588177682009-12-21T18:14:21.862+08:002009-12-21T18:14:21.862+08:00Aiseh Tommy... what to do, memang engineer like to...Aiseh Tommy... what to do, memang engineer like to have fun with numbers. But not good enough to be a kaki kopek, because you need a cool head for that.<br /><br />64:1 for Australia to win the World Cup are not good odds (betting-wise I mean). I think the bookies are afraid of giving better odds. Should be more like 100:1 for me.<br /><br />If I'm a betting man, I'd look at odds offered for who's NOT going to win. E.g. what's the odds for Spain not winning the World Cup, or what's the odds for North Korea not making it to the second round. But alas... my skills in this area is not polished yet ;-)Fadhilhttps://www.blogger.com/profile/14091828414987087822noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-21343512051465617952009-12-21T18:04:40.086+08:002009-12-21T18:04:40.086+08:00Snake,
Tu belum lagi I bagi formula, P(A')=1-...Snake,<br /><br />Tu belum lagi I bagi formula, P(A')=1-P(A) ataupun P(x)=1-P(Qn).<br /><br />Numbers cannot lie... but those who manipulate them do so, heheheh. But given a set of facts, ten different lawyers can have ten different interpretations, muhahaha!Fadhilhttps://www.blogger.com/profile/14091828414987087822noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-20581608811267156502009-12-21T17:53:29.198+08:002009-12-21T17:53:29.198+08:00mamasita,
It's July 6, 1962. Still young kan?...mamasita,<br /><br />It's July 6, 1962. Still young kan? Ehem...Fadhilhttps://www.blogger.com/profile/14091828414987087822noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-58576801643798888432009-12-21T17:52:09.135+08:002009-12-21T17:52:09.135+08:00Zen,
As you noted, the chances increase when you ...Zen,<br /><br />As you noted, the chances increase when you add more people to the group. But in your case, if you can rank the family member that shares your birthday (in terms of age seniority), maybe the group could be smaller.<br /><br />The chances of me and you sharing the same birthday? You kena bagitau birthday you dulu... :-)Fadhilhttps://www.blogger.com/profile/14091828414987087822noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-25743304887895364882009-12-21T17:43:36.199+08:002009-12-21T17:43:36.199+08:00Lili,
As I mentioned previously, you and I will n...Lili,<br /><br />As I mentioned previously, you and I will now remember each other for at least one day each year, for the rest of our lives. Now that's a fact that's really worth blushing for :-)<br /><br />As you can see, you already have three pairs of same-birthdays in your family.Fadhilhttps://www.blogger.com/profile/14091828414987087822noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-32700553467566343382009-12-21T17:35:37.193+08:002009-12-21T17:35:37.193+08:00Hliza,
I like working with numbers although I'...Hliza,<br /><br />I like working with numbers although I'm not that good in remembering them. I did the analysis just to kill some time at home... masa tu tengah dok rehat kat rumah recovering from fever. Nak buat kerje manual lain takleh, jadi dok depan laptop, opened up a spreadsheet dan mula la buat keje yang tak berapa faedah ni, heheheh...Fadhilhttps://www.blogger.com/profile/14091828414987087822noreply@blogger.comtag:blogger.com,1999:blog-1086109446112192763.post-68111139979783139962009-12-21T17:24:55.806+08:002009-12-21T17:24:55.806+08:00As,
Not many people like mathematics, that's ...As,<br /><br />Not many people like mathematics, that's why I left out the explanations.<br /><br />3 people out of 32 sounds like good odds to me.Fadhilhttps://www.blogger.com/profile/14091828414987087822noreply@blogger.com