Author Topic: Math question for you younger college people. Is this probabilities?
regulator_cracka 
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Subject: Math question for you younger college people. Is this probabilities?
I am old and been away from ciphering for some time. I even took off my shoes and socks and still can not remember what this is called or how to calculate it. Probably easy for you smart college types.



I have 5 pieces of different cheese.
I have 5 pieces of different "lunch meat"


How many sammich combinations can I make? Is this probabilities? I forget.



And then in that exact example how many sammich possibilities are there? 5 x 5 = 25?

Obviously my real world application is different things but same numbers.




Anyone? Please and Thank you.


 

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winga 
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Subject: Math question for you younger college people. Is this probabilities?
Dude... really?

 

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Reapist 
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Subject: Math question for you younger college people. Is this probabilities?
Damnit cracka, you gotta take your pants off to count to 21.

 

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rabbitslayer 
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Subject: Math question for you younger college people. Is this probabilities?
regulator_cracka posted:
I am old and been away from ciphering for some time. I even took off my shoes and socks and still can not remember what this is called or how to calculate it. Probably easy for you smart college types.



I have 5 pieces of different cheese.
I have 5 pieces of different "lunch meat"


How many sammich combinations can I make? Is this probabilities? I forget.



And then in that exact example how many sammich possibilities are there? 5 x 5 = 25?

Obviously my real world application is different things but same numbers.




Anyone? Please and Thank you.




1 piece O' meat does not a sammich make rolling_eyes

 

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Reapist 
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Subject: Math question for you younger college people. Is this probabilities?
24

 

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Rhodoman 
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Subject: Math question for you younger college people. Is this probabilities?
This is "combinations"

If you were also counting sandwiches as different when the cheese was on the top rather than the bottom, you'd be talking about "permutations"


Rho


 

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Reapist 
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Subject: Math question for you younger college people. Is this probabilities?
Well, unless you count no meat or cheese as a possible combination. I consider a meat and no cheese or a cheese and no meat as a possibility.

 

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pkhere: Jebus sometimes you make my arse tired.
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silvadel2 
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Subject: Math question for you younger college people. Is this probabilities?
Actually you have 36 (6x6) possibilities...

This is because you can choose not to have cheese, or not to have meat, or just to have an empty bun in addition to the other 25 possibilities.

Note -- If you also are allowed to have multiple meats and multiple cheeses on a single sandwich then it gets larger.

Then it would be 2^5 meat combinations x 2^5 cheese combinations.... or 32 x 32 = 1024.

That would allow for someone who wanted turkey roast beef and salami with provolone and swiss.

 

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ArchrikerHG 
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Subject: Math question for you younger college people. Is this probabilities?
Rhodoman posted:
This is "combinations"

If you were also counting sandwiches as different when the cheese was on the top rather than the bottom, you'd be talking about "permutations"


Rho


this

 

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regulator_cracka 
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Subject: Math question for you younger college people. Is this probabilities?
Rhodoman posted:
This is "combinations"

If you were also counting sandwiches as different when the cheese was on the top rather than the bottom, you'd be talking about "permutations"


Rho



Thanks Rho. I used to be decent at math but I have not been able to remember what those were called for months now.





For my simple example is it 25 possible sammichs?

 

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Rhodoman 
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Subject: Math question for you younger college people. Is this probabilities?
regulator_cracka posted:
For my simple example is it 25 possible sammichs?

The answer is 25 (if you don't care what order they are in and that every sandwich has to have both cheese and meat).

If you allow sandwiches that leave out either meat or cheese, it's (6*6) - 1 = 35 (because you wouldn't make a sandwich with neither)

 

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Rho is correct. - Varece
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Reapist 
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Subject: Math question for you younger college people. Is this probabilities?
No, it's 24. Those other guys are counting the same combination twice.

 

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pkhere: Jebus sometimes you make my arse tired.
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aon_mixed 
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Subject: Math question for you younger college people. Is this probabilities?
Rhodoman posted:
regulator_cracka posted:
For my simple example is it 25 possible sammichs?

The answer is 25 (if you don't care what order they are in and that every sandwich has to have both cheese and meat).

If you allow sandwiches that leave out either meat or cheese, it's (6*6) - 1 = 35 (because you wouldn't make a sandwich with neither)


 

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regulator_cracka 
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Subject: Math question for you younger college people. Is this probabilities?
Thanks all. You ACF'er are if nothing else, smart.




My real world application is:


I have 5 possible VPN connections I can use to connect to for work.

After I get connected one of those, IF.


Then, I have 5 possible SSL gateways connections to connect to for remote access.

Finding a working combo everyday is proving more difficult daily and I was just curious how many "combinations" I had because it can take some time to get connected some days trying so many.

 

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Rhodoman 
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Subject: Math question for you younger college people. Is this probabilities?
Reapist posted:
No, it's 24. Those other guys are counting the same combination twice.


Salami and Cheddar
Salami and Swiss
Salami and Provolone
Salami and American
Salami and Jack

Bologna and Cheddar
Bologna and Swiss
Bologna and Provolone
Bologna and American
Bologna and Jack

Ham and Cheddar
Ham and Swiss
Ham and Provolone
Ham and American
Ham and Jack

Liverwurst and Cheddar
Liverwurst and Swiss
Liverwurst and Provolone
Liverwurst and American
Liverwurst and Jack

Pastrami and Cheddar
Pastrami and Swiss
Pastrami and Provolone
Pastrami and American
Pastrami and Jack


That's 25 sandwiches, no repeats.

Rho

 

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Reapist 
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Subject: Math question for you younger college people. Is this probabilities?
Given this scenario then the answer is 14.

 

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pkhere: Jebus sometimes you make my arse tired.
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aon_mixed 
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Subject: Math question for you younger college people. Is this probabilities?
Fletch: You fellas wanna read me my rights?
Detective #2: You have the right to remain silent. You have the right to have your face kicked in by me. You have the right to have your balls stomped by him.
Fletch: I'll waive my rights.


has nothing to do with the topic, i just wanted to post it somewhere

 

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Rhodoman 
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Subject: Math question for you younger college people. Is this probabilities?
aon_mixed posted:
Fletch: You fellas wanna read me my rights?
Detective #2: You have the right to remain silent. You have the right to have your face kicked in by me. You have the right to have your balls stomped by him.
Fletch: I'll waive my rights.


has nothing to do with the topic, i just wanted to post it somewhere
Same qualifier as you:

Ron White: At that point, I had the *right* to remain silent. I just didn't have the *ability*.

Rho

 

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Rho is correct. - Varece
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Referring to illegal aliens as 'immigrants' is the same as referring to shoplifters as 'shoppers' - Dorvinion
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Subject: Math question for you younger college people. Is this probabilities?
rabbitslayer posted:
regulator_cracka posted:
I am old and been away from ciphering for some time. I even took off my shoes and socks and still can not remember what this is called or how to calculate it. Probably easy for you smart college types.



I have 5 pieces of different cheese.
I have 5 pieces of different "lunch meat"


How many sammich combinations can I make? Is this probabilities? I forget.



And then in that exact example how many sammich possibilities are there? 5 x 5 = 25?

Obviously my real world application is different things but same numbers.




Anyone? Please and Thank you.




1 piece O' meat does not a sammich make rolling_eyes


This would be the correct answer.

 

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warflea 
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Subject: Math question for you younger college people. Is this probabilities?
Fundamental Counting Principle

 

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