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InvisibleAliceDee
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Shroomery Mathematicians
    #5514195 - 04/13/06 11:02 PM (17 years, 9 months ago)

This exam question is stumping me, ive got all the other answers but this one... its all about probability and shit.. for my Finite Mathematics class...

5.) As part of a quality-control procedure, an inspector at Bristol Farms randomly selects ten eggs from each consignment of eggs he recieves and records the number of broken eggs.

a.) What is an appropriate sample space for this experiment?
b.) Describe the event E that at most three eggs are broken.
c.) Describe the event F that at least five eggs are broken.
d.) Are events E and F mutually exclusive? Explain why or why not.

whoever gets this will recieve either a Koh Samui print or Equadorian... your pick...

for some reason this class is way hard for me than my calc/trig class...


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Offlineminesstudent
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Re: Shroomery Mathematicians [Re: AliceDee]
    #5514241 - 04/13/06 11:16 PM (17 years, 9 months ago)

Shit... I'm in calc 2 and don't know what this question means.


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OfflineTheCow
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Re: Shroomery Mathematicians [Re: minesstudent]
    #5514327 - 04/13/06 11:35 PM (17 years, 9 months ago)

Isnt that just straight binomial theorem?
Edit: Meaning a binomial random variable


Edited by TheCow (04/13/06 11:42 PM)


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InvisibleBoom
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Re: Shroomery Mathematicians [Re: minesstudent]
    #5514328 - 04/13/06 11:35 PM (17 years, 9 months ago)

haha same here


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Offlinejcdangerously
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Re: Shroomery Mathematicians [Re: AliceDee]
    #5514437 - 04/14/06 12:05 AM (17 years, 9 months ago)

Quote:

Are events E and F mutually exclusive? Explain why or why not.




They're definitely mutually exclusive, because 5 > 3, therefore, situation F contradicts situation E.

I could't even begin to explain A, B, and C.


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InvisibleAliceDee
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Re: Shroomery Mathematicians [Re: jcdangerously]
    #5514531 - 04/14/06 12:32 AM (17 years, 9 months ago)

do you know the answers to the rest?


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Offlinejcdangerously
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Re: Shroomery Mathematicians [Re: AliceDee]
    #5514536 - 04/14/06 12:36 AM (17 years, 9 months ago)

'fraid not.


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InvisibleChairman Meow
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Re: Shroomery Mathematicians [Re: AliceDee]
    #5514547 - 04/14/06 12:43 AM (17 years, 9 months ago)

I just finished my math homework and next time I think I'll just pay someone off.
Good Luck!


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Offlinefresh313
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Re: Shroomery Mathematicians [Re: AliceDee]
    #5514581 - 04/14/06 01:04 AM (17 years, 9 months ago)

A. 1 consignment of eggs
B. just use the formula for, not > 3
C. at least 5 so thats , =5 or >
D. No , since B is inside of the Result set of C. You cant have at least 5 eggs broken without first having had not more than 3. U have to surpass C to get to D.

i dont know if thats right, but i remember some of it from statistics and i passed that class w/ a little College Try.


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OfflineTheCow
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Re: Shroomery Mathematicians [Re: fresh313]
    #5514721 - 04/14/06 03:01 AM (17 years, 9 months ago)

Man..... its just a binomial random variable.


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OfflineNignugnot
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Re: Shroomery Mathematicians [Re: TheCow]
    #5514903 - 04/14/06 06:49 AM (17 years, 9 months ago)

A) sample space is ten
B) 720/6 (10*9*8)/(3*2*1)
C) 121
D) events aren mutually exclusive because you can't have three eggs broken and still have at least five eggs broken.

These are probably close. The second one I believe uses permutation and the thrid one uses the other one


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OfflineTheCow
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Re: Shroomery Mathematicians [Re: Nignugnot]
    #5515613 - 04/14/06 11:14 AM (17 years, 9 months ago)

No you dont know the probability of an egg being broken. You have to leave it as variable p. Unless I am reading it wrong it sounds as though you dont know p. So you just do a basic binomial expansion, i.e (10 choose 0)(p)^0*(1-p)^10 + (10 choose 1) *p^1*(1-p)^9 +...


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Offlinekungpow
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Re: Shroomery Mathematicians [Re: TheCow]
    #5515644 - 04/14/06 11:28 AM (17 years, 9 months ago)

probability is stupid shit man. I really hate it. I'm in precalc in college and we just got done with that stupid shit and I bombed the test hardcore. I'm talking 41 percent that is the worst grade I have ever gotten on anything in my life. Looks like I'll still be able to pull off a B in the class though.

I wish I could help you out with that question but I don't have clue. I recognize all of the terms and shit but I couldn't actually figure it out. Probability is the dumbest shit in the world. Hopefully I won't run into in my next 4 semesters of calc.

~Peace Out


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Offlinekungpow
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Re: Shroomery Mathematicians [Re: TheCow]
    #5515651 - 04/14/06 11:32 AM (17 years, 9 months ago)

Quote:

TheCow said:
No you dont know the probability of an egg being broken. You have to leave it as variable p. Unless I am reading it wrong it sounds as though you dont know p. So you just do a basic binomial expansion, i.e (10 choose 0)(p)^0*(1-p)^10 + (10 choose 1) *p^1*(1-p)^9 +...




I don't think that it is a binomial expansion. You just have to put it into the little formula using factorials and shit. I wish I knew it off of the top of my head but I don't. I'm definitely too lazy to go look into my notes.

Goodluck and

~Peace Out


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Monotub #3 - check out my best grow to date!!!!



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OfflineTheCow
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Re: Shroomery Mathematicians [Re: kungpow]
    #5515768 - 04/14/06 12:06 PM (17 years, 9 months ago)

Ha thats deffinately what it is for a binomial random variable. Seems unlikely youve taken probability to me if you are in precalc. Theres a huge amount of calculus and complex math in probability.


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