On which day of the week were you born?

[PandaBear77]

Caturdai

[Zeldar]

I wonder if things will get any tighter than this:

Sunday     7 15.91% 
Monday     6 13.64% 
Tuesday    5 11.36% 
Wednesday  6 13.64% 
Thursday   7 15.91% 
Friday     7 15.91% 
Saturday   6 13.64% 

Voters: 44 

Wanna predict at what count of voters the days will all have the same number of votes?

[Leaffan]

Yeah, well I’ve had “Lady Madonna” running through my head all morning because of this thread. So, I might as well answer now: Thursday.

[Tim_R.Mortiss]

Looks pretty uniform to me. When we get up to 100 votes, I’ll do a Kolmogorov-Smirnoff test on it.

[Leaffan]

@Tim_R.Mortiss

Looks pretty uniform to me. When we get up to 100 votes, I’ll do a Kolmogorov-Smirnoff test on it.

Gesundheit.

[Zeldar]

@Tim_R.Mortiss

Looks pretty uniform to me. When we get up to 100 votes, I’ll do a Kolmogorov-Smirnoff test on it.

Oh, please do!

[kayaker]

@Tim_R.Mortiss

Looks pretty uniform to me. When we get up to 100 votes, I’ll do a Kolmogorov-Smirnoff test on it.

I’ll do the Smirnoff, you do t’other.

[congodwarf]

Sunday.

[Shagnasty]

Friday June 15, 1973 at 5:52 pm CT. Funny, I still love Friday nights in the summer.

[Scubaqueen]

Sunday, Father’s Day, ***and ***three weeks late.

Mother always said I would be late for my own funeral some day.

[FairyChatMom]

@RTFirefly

As an alternative to the traditional rhyme, there’s the 1960s pop song “Saturday’s Child” performed by the Monkees. Here are the relevant parts:

Monday had a sad child
Always feeling low down,
Tuesday had a dream child
She’s always on the go

If you love a Wednesday
You’ll live your life apart now
And if you love a Thursday
She’s gonna break your heart

Friday likes the good life
She’ll take you for a ride now
And Sunday makes a good wife
But she wants to be a bride

Oddly, the song never states Saturday’s virtues, other than “she drives me wild” and she’s “got what it takes, babe. I can tell by the way she looks at me.”

I’m Saturday’s child, and as it says by my username, I’m nice, dammit! This song was running thru my head before I even got to your post. I felt it was my personal anthem and Micky’s love song to me. Ah, youth…

[Tim_R.Mortiss]

Okay, with 89 data points, here is the result of the Kolmogorov-Smirnoff test:

Max absolute deviation: 0.059
Critical value: 0.144

Since the maximum absolute deviation does NOT exceed the critical value, we cannot reject the hypothesis that the data are uniformly distributed.

[Zeldar]

@Tim_R.Mortiss

Okay, with 89 data points, here is the result of the Kolmogorov-Smirnoff test:

Max absolute deviation: 0.059
Critical value: 0.144

Since the maximum absolute deviation does NOT exceed the critical value, we cannot reject the hypothesis that the data are uniformly distributed.

What a relief! They have wandered about plenty with varying high values, but never approaching the symmetry of the 44-vote checkpoint (that I have noticed, and I have been checking for such).

I suspect we’ll have other smoothings along the way, as long as we keep getting votes.

[Inigo_Montoya]

Huh, Thursday. Who knew?

[Zebra]

Monday? I hate Mondays.

[AClockworkMelon]

Wednesday!

[FrancisCastle]

Today! Friday, I mean.

[TriPolar]

This is probably why I hate Mondays.

[chiroptera]

@RTFirefly

Or here’s a way you can calculate it in your head, if you know what day of the week your birthday is on this year (or in some other year):

A given date advances X days through the cycle of the week between year A and year B, where X = (B-A) + (number of leap years - the number of February 29ths, actually - in between Year A and Year B).

For instance, Christmas 2011 fell on a Sunday. In 1971, Christmas was on a Saturday.

From 1971 to 2011 is 40 years, with 10 leap years. So Christmas moved 50 days around the week between 1971 and 2011. 49 =7x7, so the first 49 of those days move the date 7 times around the week and back to the same day as it started. The 50th day moves it 1 day forward. Flipping that around, that’s 1 day backward between 1971 and 2011, so Sunday in 2011 ==> Saturday in 1971.

Or today is January 13, 2012. It’s a Friday. What day of the week will January 13 fall on in 2042?

30 years + 8 leap years (why 8? I’ll get there) = 38 = 5*7 + 3. So Jan, 13 goes five times around the week, plus 3 more days, so it’ll be on a Monday in 2042.

Why 8 leap years? Because we have 7 leap years (2016, 2020, 2024, 2028, 2032, 2036, and 2040) in between, but we also count 2012 because what we’re really counting isn’t actually the leap year as a whole, but just the extra day on Feb. 29. And Feb. 29, 2012 is in the interval between Jan. 13, 2012 and Jan. 13, 2042. So we count it.

Note: this works only between March 1, 1900 and February 28, 2100. Outside of those dates, one must adjust for the lack of a February 29 in either of those years. If you want to know what day a date falls on in A.D. 2101, when war was beginning, don’t count 2100 among your leap years. Years ending in 00 are leap years only if the number of centuries is divisible by 4: 2000, 2400, 2800, etc.

That made my head hurt!

Or, you could just google the date, which is what I did.
Tuesday.

[Khadaji]

I don’t know why I had it in my head it was a Friday, but as it turns out, I was right.