Wednesday, March 25, 2009

Niwatori's Corner (Statistics - Looking for patterns)

O hayao gozaimasu mina! (forgot what this means it means "Hello everyone in formal context =p)

!!!!For Ya Imfomation. . . . . . !!!!!!
anecdotes sorta inportant
Red anecdotes Stuff to check/IMPORTANT STUFF take it however you will
Green is for formulas/any calculator stuff!

Anywho. . . today I will serve you with both the Looking for patterns in Statistics "Grouped data" as well as how to get these Z-scores but keep yourself tuned for the next posting for the Z-scores part =p

Yes, well just to quote Mr.Kuros and his masterful words of math ( = [ apparently flattery doesn't get free marks) "Math is the Science of Patterns" it really is. You are looking for simliar patterns and then apply them to what we are given to us. Basically saying, having things you know and utilize the ideas/patterns to solve something new unknown to us.

Ok? Ok! >_<

Remember hearing about the difference between "S" and "O" Standard Deviations?
Well here's the thing "S" is for a sample of a large data in which for the learning process of Statistics we're only using "o" in this case the sign "SIGMA" anecdotes for "sum of" to find the neccessary info which is the population

an example is a survey of favorite car around the world where 1000 people out of 40000 people in the country take the survey and then taking that info to predict everyone elses choice of car. This is considered the "S" type being that this is a large piece of data.

"o" type for example is the survey given to Sisler High School and then seeing who likes which car. A small population such as a local school is considered "o" type where data is small.
Ok now?

Now on with Niwatori-san's Diagrams
--follow them and ask for questions like comments/or at school ask for some help you all know who Niwatori-san is =P--

-See now we were taught the day before of something called a "Frequency distribution table"
as well as a "Probability distribution table" actually the probablity one is just the figures/numbers in percentages! So these diagrams will review my knowledge of how to crack at this shell in a nutshell! -

The above diagram shows a Histogram and this bar graph will be your friend.

To build one go to (STAT PLOT) on the (Y=) button but press the (2nd) button 1st from that press the 1st one for now. After this Highlight and press the ON side. The x-value will always be L1, the frequency will be different depending if your working with a probability/frenquency graph. --HINT-- L3 for probability most of the time L2 for the frequency most of the time trust me you`ll understand when you press them!

Well that concludes this portion. Wait till morning for the next page. I needed to rest sorry folks.

Anyways the next scriber is David-san!

*Passes baton skoots away pwoosh pwoosh pwoosh*

"My hope is today is tommorrow`s colorful"
-By Niwatori-san-


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