Niwatori-san's Reflection (Statistics unit)

Ah well Statistics it wasn't entirely hard but not entirely easy... Just following the Concept of changing from a probability to an area was confusing if a person was to look and normal distribution. Anywho I'm fine with the details of the unit by now being some more practice should spruce up any minor areas where I don`t feel confident about where sources of error may occur at a high percentage if I don't be careful >_<

People for words of encouragement...

'' Pay yourself some worth rather something fancy ''

Niwatori's Corner (Statistics - Zscores!)

KONICHIWA MINA!

Welcome back to Niwatori-san's corner and today is Z-scores. Feed the need for more MATH!

For Your Information. . . . Red Anecdotes Stuff to know/IMPORTANT STUFF but take it however you will
Blue Anecdotes kinda important so like review it if you like
Green is for formulas/calculations with the calculator and so forth


After the briefing of when a standard deviation is 1,2,3 or even 4 deviations above or below the mean... might as well tell you what "above/below standard deviations from the mean" means.

**In short, you have the mean of a set of data and then a standard deviation from the data the whole basis is when you are "below" the mean you subtract the number of standard deviations from the mean getting a negative number. Being "above the mean" just means to add the number of standard deviations to the mean.
The formula for this is:When you need to get a Z-score to determine which side is greater than the other you get the Z-scores of all the needed info. Then you compare with which number is greater.

Sorry but I couldn't think of an example right at the moment but look over the slides MR.Kuros posted up.

Look look the thing is for now is to use this formula for the distribution tables and follow along with the lessons to come.

Sorry that this post is short but that's all I can think of with my Knowledge for now.
(Plus it's just a review of what we did anyways so meh sue me >-<)


Anywho.. . . . David-san is the next Scriber! (>_<>

"Eagerness brings the most out of Enthusiasm!"

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. . . . . . !!!!!!
Blue 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-

Niwatori-san's Corner: "welcome to the matrix"

O hayao gozimasu (that's hello formally in japanese)



Niwatori-san here again telling you the viewers what we did in class today!


Well in today's class we briefly talked about the "Digital Ethics" pros and cons about "posting online" All the digital ethics really is saying is to be precautious about your internet postings online. One little thing you don't want to say/mean online could bite you back in your future days.





And a note from Mr . Kuros saying about a John J. Medina and how exercise is the best stimulant to toggle the brain cells to work efficiently. Dr Medina says that our blood flow is rushed after doing exercise opening up the brain stimuli to take in information.



Soooo...... GET SOME EXERCISE ITZ GOOD FOR YA!!



After all the "Oath" pledging in class to follow the rules of the online discretion concerning posting. Most of us said, "Yes" we agree to the terms agreed and although we didn't get to write a signed approval Mr . Kuro's Firm grip sure is enough >___<>'_')> (kirby dancing by the way)



So remember Scalar and Vector Matrix multiplication?

If you don't here's a reminder



Scalar is the multiplication with no rules to multiplying you just multiply with the given variable/number to the given matrix

eg.

6* [ 3 2 1 = [ 18 12 6

4 2 3] 24 12 18]

this method is done by multiplying by 6 variable by each

individual number in the matrix such of 6 * 1,1 = 3

6*3 = 18 see?


Vector has rules you got to know and follow in order to get the right results.



This diagram shows you step by step "How to do?" Vector guide

EH??! You're saying my diagram looks like a paperweight newspaper?!

(well itz true it does look like it )

Anywho that is about sums (Lol SUMS that's what math does to you when start speaking in math terms) up the class from today. Oh yeah, there are some questions left to do on the blog itself. They're on the slides so check there while looking thru check out Mr . Kuros videos he posted along with the slides of today.

And to all of the people who didn't sign for blogger now is the time to do so to get easy marks people!! 10% cmon! Also read Digital Ethics over if you haven't done so it's important to know cuz you never know ya know?!

Well Niwatori-san is tired now and time is of an essense.

GAMBETE MINA!!! (work hard people!! in japanese of course!)

Next scriber is .... *drum roll plz....* (same tumbleweed passing by) "dang it all!"

*******Camilla********** YAY! *passes baton "clap clap clap" skoots off "pwoosh pwoosh pwoosh"