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Set Theory, Logic, Probability, Statistics

- Fundamentals: Set theory, logic and proofs. Probability and statistics
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Jan16-12 Greg Bernhardt
Please post any and all homework or other textbook-style problems in one of the Homework & Coursework Questions...
Feb23-13 09:25 AM
micromass
1 32,750
Recently I was discussing hitting streaks with my dad and I said "If you flip a coin a million time you're bound to...
May14-13 04:15 PM
D H
2 879
1. Consider n flips of a fair coin. Calculate the probability: a. n/2 < -Total number of heads b. 5000 > total...
Dec19-06 10:51 PM
CRGreathouse
2 4,197
for part iv, where does the 4c1 and 5c1 come from? the question need 3 marbles , but there's only 2 marbles are chosen...
May31-14 09:58 AM
Simon Bridge
6 421
With a regular deck of 52 cards, how would you find the probability of getting the Ace of Spaces if you took turns...
Nov6-12 06:24 AM
IceXaos
3 1,009
Folks, need some help: I have a tool that reported 500 virus attacks on Operating systems. I have 3 OS's Win 2000,...
Feb18-12 07:54 AM
jhingi
0 892
In a group of 23 people, the probability that any 2 people share a birthday is: 1 - \frac{365!}{342!365^{23}} ...
Mar11-10 04:01 PM
mrbohn1
6 1,045
Let me start by saying I'm an amateur insofar as I took one propositional logic course in college and have self-taught...
Aug17-11 02:07 PM
claytondaley
7 1,233
Everything is in the title, basically. We flip a coin 10 times. What is the probability of at least 5 consecutive...
Nov15-12 10:07 PM
tycoon515
10 1,618
Hi, Lets say I have the following attributes... Body fat percentage, Body mass index Outcome = obese (yes / no)...
Jun10-10 10:46 AM
redeemer90
4 1,089
Say there is a chance p of an event happening each attempt. How many attempts (on average) would it take for this...
Jun11-11 02:08 PM
micromass
1 1,250
For some time now I've been trying to figure out probably for a problem of the following form. Say a criminal...
Apr18-13 03:54 PM
mathman
3 449
I have a question regarding a probability question. If four people are randomly selected what is the probability that...
Sep20-08 02:44 PM
jimmyjamz
2 1,370
Suppose A and B play over and over , independently a game which each time results in either a win for A , a win for B...
Dec1-10 02:00 AM
Bacle
2 1,383
Let's say I monitors my local aquifer (Edwards) using well J-17 over the past 8 summers (not counting this summer). I...
Jul1-10 09:03 PM
Pere Callahan
2 2,024
Hello everyone, First post here so be kind :) I am working on a problem, that should be easy, but I just want to...
Sep23-09 08:25 PM
wooster
2 4,916
Say there are 60 people in a 180-seat room. What's the probability that a particular seat will be vacant?
May30-10 08:21 AM
moonman239
2 747
What is the probability that a run of exactly L consecutive heads (or tails) appears in N independent tosses of a...
Dec4-09 06:24 AM
grad
11 3,352
Hi guys, I have a question re: random numbers and probability. If I have a random number generator that generates a...
May1-11 04:10 PM
M-quest
2 1,391
Does physics or mathematics allow for a probability of a probability?
Nov11-03 04:32 PM
fsteveb
10 5,753
Hey, lets take for example the probabilities when u throw 100 times a coin (lets say it cant be corner) ok , the...
Feb4-07 02:59 PM
JPC
15 2,162
Imagine a simple chocolate bar promotion in which there is a 6 in 1 chance of winning another bar. My question is; If...
Jul28-10 04:21 PM
Jamma
4 1,103
Why do we look at the probability of a given data set given the parameters, as opposed to the probability of the...
Jul24-08 03:55 AM
quadraphonics
2 953
Suppose X and Y are continuous random variables with the joint pdf f_{xy}(x,y) on the \times square. Is the...
Oct23-10 04:57 PM
mathman
5 1,264
What's the probability that a confidence interval (with alpha=10%), will have at least 85 of 100 predicted means...
Jul31-08 11:48 PM
shalomhk
2 1,255
Hi, I have been reading the book "200% of Nothing" by A K Dewdney, which explains various math abuses experienced...
Sep18-08 01:15 PM
phyti
4 1,863
Hi This question has been driving me mad, hoping someone will be able to help me The question is: A bag...
Jul15-10 10:43 PM
SW VandeCarr
34 7,269
text files consists of 0&1 bits. But in ASCII, Most Significant Bit(MSB) is 0, so we have more 0s than 1s. Assume...
Dec4-12 03:16 AM
Cylab
56 5,937
Fields of singular probabilities are inherent to quantum mechanics, but what method determines the statistics of curve...
May30-04 10:47 PM
Loren Booda
3 2,042
The question is this: "An urn is filled with 8 green balls, 2 red balls, and 6 orange balls. Three balls are...
Jun25-13 11:50 PM
Bacle2
3 877
In probability, P(A) is the probability of event A occurring. What is O(A), in the same context? I've tried looking...
Nov15-12 03:27 PM
CaseyJRichard
2 840
Hello everyone, I feel ashamed to be asking someone to explain such simple notation to me, but Iím having serious...
Oct30-03 09:37 AM
jcsd
3 26,103
Hi math gurus . I have probability modeling question. There are 5 coins A, B, C, D,E,F . Each coin has 2 outcomes...
Aug1-13 08:12 PM
phya2020a
5 821
Hi, just curious as to whether one can use non-standard reals to avoid issues of measure 0 events, i.e., all points...
Jul24-12 01:54 PM
Bacle2
0 723
Let \mathcal B(\Omega) be the Borel algebra of \Omega (the σ-algebra of Borel sets in \Omega). I understand that if we...
Sep22-11 12:02 AM
Fredrik
4 1,922
An aircraft requires 25 rivets. The seam will have to be reworked if any of these rivets is defective. Suppose...
Jan28-08 04:07 AM
tronter
2 2,018
What is the difference between a probability mass function and a probability measure or are they just the same thing? ...
Dec16-11 07:56 PM
SW VandeCarr
2 2,284
Hi, If I have a joint probability mass function p_{X,Y}(x,y), can we get the marginal probability mass functions...
May11-11 05:13 PM
S_David
10 2,989
You are in a jungle, at each second a bee lands on your arm with a probability of 0.5. Given that a bee lands on you,...
Oct21-07 11:13 PM
EnumaElish
3 9,427
Hi Guys, Does anyone know any good sources to learn the more advanced probability topics such as multivariate...
Aug8-09 09:07 AM
Focus
1 1,138
Dear all, I wonder wheather there exsits a probability inequality for the sum of independent normal random...
Jul26-07 12:34 PM
EnumaElish
3 5,274

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