Jump to content

Math Question


CosmicBills

Recommended Posts

I am afraid of math, but was wondering this:

 

If each NFL game is a 50/50 Win Loss proposition, what is the statistical probibility that Denver, Baltimore and Jax lose at least one of their final two games?

 

or, in other words...

 

It's like 4 people flipping a coin twice. What's the chances that all four people get a Heads at least once?

 

Can anyone solve that equation? I would love to know.

 

Thanks!

Link to comment
Share on other sites

Simple 50/50. The events are independent of each other. If the probablility is 50/50 for each game, it is 50/50 for the scenario you describe. What are they teaching you kids these days in school ... how to roll a condom on?

Link to comment
Share on other sites

Simple 50/50.  The events are independent of each other.  If the probablility is 50/50 for each game, it is 50/50 for the scenario you describe.  What are they teaching you kids these days in school ... how to roll a condom on?

168175[/snapback]

 

You roll them on ?? :devil:

Link to comment
Share on other sites

Simple 50/50.  The events are independent of each other.  If the probablility is 50/50 for each game, it is 50/50 for the scenario you describe.  What are they teaching you kids these days in school ... how to roll a condom on?

168175[/snapback]

 

That can't be the answer...can it?

 

Because wouldn't you have to factor in the chances that only 2 of the 3 teams get a Heads, or the chance that only 1 of the 3 teams get a Heads...

 

It's not 50/50.

Link to comment
Share on other sites

Its 1/8th.

 

If you flip a coin 3 times, the likelyhood it will turn up heads (or tails) 3 times in a row is 1 in 8

168178[/snapback]

 

Ah, thank you:)

 

So we have a 12% chance...

 

Looks grim when you see it in that format, but it's better than nothing!

Link to comment
Share on other sites

Simple 50/50.  The events are independent of each other.  If the probablility is 50/50 for each game, it is 50/50 for the scenario you describe.  What are they teaching you kids these days in school ... how to roll a condom on?

168175[/snapback]

 

I don't know the right answer, but I know that you're wrong....

 

flipping a penny is an independent event too, but the prob. that it is flipped tails 3x in a row is not 50%.

Link to comment
Share on other sites

Ah, thank you:)

 

So we have a 12% chance...

 

Looks grim when you see it in that format, but it's better than nothing!

168182[/snapback]

 

I doubt that is correct either because you only need one loss out of 2 possible tries for each team. If it was the final game - yes, but not now.

 

I think it is 0.75^3 = 42%

 

WW, LW, WL, LL = 75% success for each team....

Link to comment
Share on other sites

I doubt that is correct either because you only need one loss out of 2 possible tries for each team.  If it wa sthe final game - yes, but not now.

168193[/snapback]

 

Oh, great point!

 

See, this is why math and I don't get along too well. :devil:

Link to comment
Share on other sites

Thanks so much.

 

I know it's meaningless, and even though I hate math, I like numbers.

 

I am a walking contradiction I guess.  :devil:

168202[/snapback]

 

not to bum you out, but assuming I'm right - I believe I am - then if you include OUR odds of WW then all the scenarios play out to a 10.5% chance of occuring... <_<

Link to comment
Share on other sites

Guest TSquareBoston

42.2%

Assuming equal (50% probability) in each game:

 

Each independent team has a 75% chance of losing at least one game: 4 possible combinations, of which 3 consist of a loss: W/W,W/L,L/W and L/L. 3/4=75%

 

The chance of all three having a positive outcome (at least one loss) is

75% x 75% x 75%.

 

Dated a math major way back.

Link to comment
Share on other sites

Well, I don't think that you can make a reasonable analysis assuming every game is a 50/50 proposition. We know that isn't the case - you'd be hard pressed to find someone make you an even money bet on next week's San Fran/Buffalo game.

 

In this case, you have to factor in the lines on the games. Here's my projections:

 

Buff at SF - Buffalo by 13

Pitt at Buff - Pitt 3 (if 1 seed isn't wrapped up)

Buff 1-3 (if Pitt wraps up one seed)

 

Denver at Tennessee - Denver -3

Indy at Denver - Denver -3 (if Indy can't improve their position, which is very likely...if this game were in week 16, Indy would be a three point favorite - this is really a killer for the Bills)

 

Houston at Jacksonville - Jags -5.5

Jacksonville at Oakland - Jacksonville -6 (if they can win to get in - a scenario that will inflate the line....normally that's a Jacks -3)

 

Baltimore at Pittsburgh - Pittsburgh -7

Miami at Baltimore - Baltimore -12

 

There's also the Jets scenario....

 

Pats at Jets - New England -3

Jets at St. Louis - Jets -8

 

Since Denver and Jacksonville are favored in both their games, there's a higher than 25% probability (nominal coin flipping odds) that either one will win both. I'd put the Jags somewhere around 50% and the Broncos at 35%. I'd put Baltimore at around 15%. The Bills are highly dependent on the value of the game to Pittsburgh.

 

I think the Bills have a 20% shot or so at getting into this thing.

Link to comment
Share on other sites

Simple 50/50.  The events are independent of each other.  If the probablility is 50/50 for each game, it is 50/50 for the scenario you describe.  What are they teaching you kids these days in school ... how to roll a condom on?

168175[/snapback]

 

You have to love someone insulting other's education when the answer they come to isn't even close to being the correct answer. Try taking a Stats class before coming back to sit on your high horse.

Link to comment
Share on other sites

×
×
  • Create New...