Geometry Warrior

Hi, I've been trying to toilet train our puppy for the past 2 1/2 months. She learns to sit and not bite easily, but no luck on toilet training.

We tried pads in the beginning before all her vaccinations were done. She never went on the pads except for perhaps a couple accidents. Over the past couple weeks, I've been crate training her. She spends much of the day in the crate. I take her out every hour or so for walks, but she had NEVER done her business outside. I am slow and patient, and will walk her for half an hour, but she doesn't go. Amazingly, she goes shortly after returning indoors.

I didn't even know puppies should have the kind of bladder control she has! She never evacuates in the crate or outside, only on the carpet and occasionally tiles.

The weather here is very mild, so I don't suspect an issue there. And she knows she's wrong to go inside because she runs and hides when she does it, though she'll sometimes do it right next to me. This all just makes no sense to me. What's the variable I'm missing???

So I understand the concept of letting Starburst dissolve in vodka to make a delicious drink, but how many Starburst should I add per volume of vodka? I keep seeing 1-2 "bags" per pint, but wtf kind of unit is a "bag?" How many are in a "bag" and what size of bag?

I am sorta stumped on this. I know how to do this on small scale, but I don't know the formula for large scale applications, that's what I need. Here's the small scale:

You have 2 dice in a cup, one is a normal 6-sided die, the other is a 4 sided die. If you drop one randomly out of the cup, what is the mean outcome (the easy part) and standard deviation?

With this small scale, I can simply do this by counting, but how would you go about doing this if you had many more types of dice?

I got a computer from a friend with Windows 7 on it. I would like to format the harddrive and start from fresh, but I don't want to lose the operating system. Are there any programs out there that can do this?

Ok, so this one may be tough, I've definitely been getting stumped on it. So I've got a 5x5 grid, 25 squares. There are a certain number of bombs in the grid. I am told how many bombs are in each column, and how many are in each row. I want to be able to calculate the probability that a specific square contains a bomb.

Here's where I'm getting hung up:

Say column A has 2 bombs. This suggests that each of the 5 squares in column A should have a 2/5 or .4 chance of containing a bomb.

Now say that row 1 has 3 bombs. This suggests that each of the 5 squares in row 1 should have a 3/5 or .6 chance of containing a bomb.

However, square A1 has a .4 chance from being in column A and a .6 chance from being in row 1. So how do I integrate these to give the actual probability of a bomb being in square A1?

Thank you so much to whoever can help with this!!!

Worth noting, each square can contain only 1 bomb, or may contain 0 bombs, it's binomial. Also, if a column has 2 bombs in its 5 squares, the sum of the probabilities of each square having a bomb should be 2, not 1, since there are 2 bombs.

Ok, so this one may be tough, I've definitely been getting stumped on it. So I've got a 5x5 grid, 25 squares. There are a certain number of bombs in the grid. I am told how many bombs are in each column, and how many are in each row. I want to be able to calculate the probability that a specific square contains a bomb.

Here's where I'm getting hung up:

Say column A has 2 bombs. This suggests that each of the 5 squares in column A should have a 2/5 or .4 chance of containing a bomb.

Now say that row 1 has 3 bombs. This suggests that each of the 5 squares in row 1 should have a 3/5 or .6 chance of containing a bomb.

However, square A1 has a .4 chance from being in column A and a .6 chance from being in row 1. So how do I integrate these to give the actual probability of a bomb being in square A1?

Thank you so much to whoever can help with this!!!

So, a friend of mine has a dice roller in our IRC channel and I've taken on the task of determining the statistical distribution of the results. Unfortunately, I'm having a lot of trouble finding anything beyond the mean. Here's how it works (the algorithm):

Decides how many dice to roll: 100-500 dice

For each individual dice, decides how many sides: 4 / 6 / 8 / 10 / 12 / 20 / 30

Rolls each individual di, adds results for one display.

So, for the mean, I figured to take the mean of each individual di, add and divide by 7, then multiply by (100+500)/2 to get 1928.57 as the mean result, which seems right.

What I need is a manner to find percentiles, which is difficult because of the positive skew of the distribution: min=100, mean=1,928.57, max=15,000

I appreciate any help you can provide with this!

For my accounting class, I have to make a spreadsheet with one sheet being cash flows from different sources, reported as they happen. I have a column for date, account source, and transaction amount.

That's easy, my problem is that I have to have a running total at the top for the net change of each account type. Is there a logic test that I can use to say "for all rows that have a C column (account type column) that say "Cash on Hand", add that number to this other cell's total; and again for the other account types"?

I've looked online for a while, at many different translators, but I can't find anything online about a latin word for the number zero. Was the concept of zero discovered after Latin 'died?'

I noticed during most if not all competitions, Makoto Nagano has someone punch him in his upper back while he's bending forward. He then leans up looking very refreshed. So odd, a Japanese tradition/medical thing/something else?

Can you recommend a pair of headphones for use while drumming that will stay put, are comfortable, and produce great sound (bass range is critical).

Noise cancellation is not important and I would actually prefer they not have it. Thanks!

I have a device (an electronic double bass pedal modulator) that uses a 9-volt battery up in about 1/2 hour, so I bought a 9-volt AC to DC power supply, which I intend to wire into the battery terminals instead of the battery.

I've been looking this up but haven't gotten a clear answer. I've heard that I need to connect the + wire from the power supply to the - of the battery terminal, and the - from the power supply to the + on the battery terminal. Is this true? Thanks much!

I have a device (an electronic double bass pedal modulator) that uses a 9-volt battery up in about 1/2 hour, so I bought a 9-volt AC to DC power supply, which I intend to wire into the battery terminals instead of the battery.

I've been looking this up but haven't gotten a clear answer. I've heard that I need to connect the + wire from the power supply to the - of the battery terminal, and the - from the power supply to the + on the battery terminal. Is this true? Thanks much!

I have a device that uses a 9-volt battery, but it goes through them like CRAZY and they're so expensive. So, I'm thinking that I can get a power supply from Radioshack to power it, but does anybody make one that's shaped like a 9-volt battery with wires that go out to the power supply?

I'm thinking, something kinda like those cd to cassette player things, ya know? Thanks!

I just bought a new tuner, and on the back, the speaker outs say 6Ω, but my speakers are 4Ω, is it possible to use them with this tuner? Thanks!

Here's the question: "Yakima Air flies non-stop to various cities. Each of their planes have 24 seats. If the probability of any randomly selected person showing up is .9, and each person acts independently, how many reservations should the airline accept per flight?"

So, what I did is set up a table. Obviously, n = the number of reservations, p = .9, and q = .1.

I found mean, standard deviation, and P(x<=24) for each n:

n = 24; 21.6; 1.4697; 1.0000

n = 25; 22.5; 1.5000; .9282

n = 26; 23.4; 1.5297; .7487

n = 27; 24.3; 1.5588; .5154

I'm not sure whether the mean or P(x<=24) would be better guidelines, or maybe there's something else. Any help?

Not sure if this is a Mac only issue, but the only problem I've had is in exporting one of my accounting programs I made. One of the labels is "PV" for present value, and the calculator for some reason shows it as PV, but only recognizes it as one character, creating an error when I run the program.

Does PV mean something different to a TI-83, or is it some other issue?

I have a finite math question here. It says that cars driving by a certain mile post have a 50% chance of driving faster than 70 mph, so what are the odds that at least 3 of the next 5 will be driving faster than 70 mph?

The book says the answer is 50%, but I would think that the chances of 5 of the next 5 would be 50%, but if 2 of them could be driving slower, shouldn't the chances increase?

This problem is driving me nuts, I have 3 methods to do this, all of which giving me different results. So the question is, if you have a classroom, how many students must there be in order for there to be a 50% chance of 2 students having the same birthday. Never mind the year, assume a non-leap year, and no twins, just straight probabilities. Thanks much in advance.

The basic probability of winning a nobel prize is one in several billion. A prize winner once said the probability of winning a second one is one in several hundred (the rough amount of those who have won a nobel prize in the past). Was he just joking, or is there merit to his claim?