Assignment #8- Data Sets

(a) I chose the data set link 2007 Advanced Placement (AP) Exam Scores by Discipline.

(b) The data set contains 2,533,431 AP Examinations taken by 1,464,254 students from 16,464 secondary schools. It shows the subject of the Examination, the Examinations grade, the number of students who received either a 1,2,3,4, or 5. The Mean of the grade and it's standard deviation.

The purpose of this data is to evaluate the performance for each grade level, type of school, or geographic location.

(c) Examinations of foreign language tend to have a higher Mean Grade than the other Examinations. Why do some students perform higher on foreign language examinations?

Assignment 7-SOCR Website

I really believe that this website will be helpful to our class. An interesting feature I found in this website is the "Distributions" tab at the top of the website. I found this very interesting because it shows you different types of distributions and I believe this will be very helpful later on, as it shows you many different distributions.

Another feauture that I found helpful was the "Probability & Statistics EBook". This is also found at the top of the website. This will really help me and my classmates because it includes material from the textbook. We can even use it now because it has two chapters based on probability, chapters 4and 5. It gives more examples on the subject that can be very helpful.

:)

Assignment #6- Elections Statistics

-I found my information in the Cnn website . 

- It said that Jerry Brown won 51% to Meg Whitman's 41%

-Who: Cnn.com
-Why: To provide poll results regarding elections.
-Where: California
-When:  November 2, 2010
-How: The information was gathered from the voters.

I don't think the information wasn't very accurate, because it was bias. It only gave 86 percent of the results, leaving out another 14 percent that could have been very influential.

The results can be based on only one party, or the areas where the results were gathered could of influence a lot.

The results don't state where and how the results were obtained, making it bias and very selective.

That is my concern, maybe Meg Whitman could have had a chance to win if it wasn't for that 14 resting percent. 

Assignment #5- Pairing Up

1. I would consider pairing up with Alyssa, Sarah and Jocelyn.
They all seem very friendly and nice.
Alyssa always answers questions during class, stating that she knows tha matrial very well.
Sarah is a hard worker, and I know that because last year i also had her for my math class :)
shes very friendly and hardworking,
Jocelyn is quiet, and is always paying attention during lessons. She seems very focused and concentrated.
:)

Assignment #3- Correlation

-Correlation is important because it shows how strong the relationship is between two variables.
-Correlation and Regression analysis has helped me in life by helping me understand how the hours i study affect the grades i get on my test. when i spend more time studying, I tend to get better grades than when I study just before the test. Helps me understand variables better.
-Another correlation that might have impact on my life would be the correlation between the months i study for the Sat and the actual score i get. This can help me manage time, and prepare for the SAT.

2nd Blog Assignment: Assessment Reflection

1. For the first test and quiz I read the chapter and studies my notes. But honestly i just read throught it all fast, so that showed in my grade.
2. In order to be more prepared for the test and quiz I would have studied not only the night before but all the other days I had the chance to. I would had also asked more questions during class, and ask my classmates for help.
3. I waited till like two days before the homework was due, and I believe that was another reason why I didn't do so good in my test.
4. I believe my score is justified, because of the time that was given and also because it was the first quiz and the first test.

1st Blog Assignment

The data i would like to use regarding the students in our class, would be how much time each student exercises daily.With this data we will be able to find out the average time a student exercises. I believe a possible preconceived notion would be that students may have alot of homework that they might not have time to exercise.. or some might have just a lil bit of time to exercise per day.
I believe they would be some possible outliers, because I myself don't exercise daily due to homework and other things that keep me busy.
I believe the data would be skewed  and that the range can be from 1 to 3 hours. the median may be 2 and some outliers might be present because there is some students that are in sports and exercise possibly more than 3 hours daily

Assignment #4 The Book's Website

1. Online Quizzes
Each Chapter has a quiz that helps review, and this will be helpful to study for the upcoming test in class.
on the home page, click on the online quizzes link and it will take you to every quiz on the chapters.
2. Statistical Applets
This is found on the left side of the home page, and its a link that says "Statistical Applets"... you click this link and it'll take you to a page that shows different kind of data , such as: Mean and Median, Probability, and many more. This link is very helpful because it shows different kind of data and it shows why its used and HOW its used. very helpful :)
3. Statistics on the Web
this is another helpful thing from the Website.. this helps us by showing us actual data and statistics of economics, business and geography buts theres many more too. this will help us understand how data will be used and how it works around us. This link is found on the Homepage and all you have to do is click on it and it'll take you to a page where it shows all the chapters.