
Please post any and all homework or other textbookstyle problems in one of the Homework & Coursework Questions...

Feb2313 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...

May1413 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...

Dec1906 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...

May3114 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...

Nov612 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,...

Feb1812 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}}
...

Mar1110 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 selftaught...

Aug1711 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...

Nov1512 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)...

Jun1010 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...

Jun1111 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...

Apr1813 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...

Sep2008 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...

Dec110 02:00 AM
Bacle

2 
1,383 
Let's say I monitors my local aquifer (Edwards) using well J17 over the past 8 summers (not counting this summer). I...

Jul110 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...

Sep2309 08:25 PM
wooster

2 
4,916 
Say there are 60 people in a 180seat room. What's the probability that a particular seat will be vacant?

May3010 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...

Dec409 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...

May111 04:10 PM
Mquest

2 
1,391 
Does physics or mathematics allow for a probability of a probability?

Nov1103 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...

Feb407 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...

Jul2810 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...

Jul2408 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...

Oct2310 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...

Jul3108 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...

Sep1808 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...

Jul1510 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...

Dec412 03:16 AM
Cylab

56 
5,937 
Fields of singular probabilities are inherent to quantum mechanics, but what method determines the statistics of curve...

May3004 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...

Jun2513 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...

Nov1512 03:27 PM
CaseyJRichard

2 
840 
Hello everyone, I feel ashamed to be asking someone to explain such simple notation to me, but I’m having serious...

Oct3003 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...

Aug113 08:12 PM
phya2020a

5 
821 
Hi, just curious as to whether one can use nonstandard reals to avoid issues of
measure 0 events, i.e., all points...

Jul2412 01:54 PM
Bacle2

0 
723 
Let \mathcal B(\Omega) be the Borel algebra of \Omega (the σalgebra of Borel sets in \Omega). I understand that if we...

Sep2211 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...

Jan2808 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? ...

Dec1611 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...

May1111 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,...

Oct2107 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...

Aug809 09:07 AM
Focus

1 
1,138 
Dear all,
I wonder wheather there exsits a probability inequality for the sum of independent normal random...

Jul2607 12:34 PM
EnumaElish

3 
5,274 