This thread is just what the title says it is. It is all about Math. You can post math jokes(the jokes don't have to be good), math questions, what you like about Math, or even why you hate Math.
My math joke: Resistance is not futile. It is voltage divided by amps.
After finishing my quiz on 'Solving Quadratic Functions Algebraicly' (Got an 89 on it), I was messing around with my calculator (A TI-83 Plus), and found this weird thing out:
Hit these buttons in this order over and over and over and over again: SIN, COS, TAN, ^, and x^-1. Heres what your screen (if you have the same calculator as me), should look like:
Couldn't you just use a 1 variable Z Proportion Test?
This is what I was talking about before about how people often misuse stat tests. There are different conditions that must be met for each test, and I believe that there are less conditions needed for the chi-squared test. But in this case, I think you are right. The Chi-square test should give the result as a z test.
I'm not sure the z-test works as well for more degrees of freedom... Did you try it on the die problem? Its trivial with chi-squared test, I'm curious to know if it is as simple (or even applicable) to the z test...
*it should be noted that stats is hardly my area of expertise...
Etc, Etc, Etc. Do it a bunch of times, and then hit enter.
Syntax error? you can get it to scroll up really fast if you delete it, but you can do that with any lengthy entry.
What die problem? To see if a die is loaded. It would be almost the exact same as the coin one.
It is for the chi-squared test, I was wondering if the same is true for the z-test.
This one:
Problem: what if I rolled a die 90 times, and got no ones, twenty 2s, fifteen 3s, ten 4s, twenty-five 5s, and twenty 6s? Should we consider this die to be fair?
I hate maths!!!! That's why i chose to give exams in order to go to the university of subjects like: ancient greek , history , latin and greek literature (Im greek btw) and the ejucations sucks here... That's why almost everyone in my age is doing extra classes!
Heres a math puzzle I found on a blog called futility closet. I love math I'm in Algebra II right now it's pretty easy. I also love math puzzles.
A B . .
An ant will always position itself so that it's twice as far away from vinegar as it is from honey. If we put a dab of vinegar on point A and a dab of honey at B and release a troop of ants, what formation will they take up?
An ant will always position itself so that it's twice as far away from vinegar as it is from honey. If we put a dab of vinegar on point A and a dab of honey at B and release a troop of ants, what formation will they take up?
