StudentShare solutions

# Correlation - Essay Example

## Extract of sampleCorrelation

A negative correlation means that the changes in the variables are not uniform. In other words, when one variable increases the other decreases and vice versa.
The correlation between different variable are in different cases are analyzed here. This analysis basically relates to the internet subsidies in Public Schools. "Policymakers and analysts have argued that public schools are a natural place to teach underserved populations about computers and increase access to new technology." (Goolsbee & Guryan, 2003).
The correlation between the variable A and variable B of school lunch program can be seen first. The variable A is the number of students who are eligible for school lunch. The variable B is the amount of funding received by the school. Different types of correlation can occur between these two variables. A positive correlation between the two variables means that adequate funds are received by the school in order to provide lunch for the students at the school. This refers to the proper working of the system. A negative correlation between the two variables means that even though there are adequate numbers of students eligible for the lunch, the schools don't receive the necessary fund for providing the students with proper lunch. The third case is where the correlation between the two variables is minimal. This is rather a neutral case where the condition is that there are no eligible students and funds are not required by the schools.
Correlation between subsidy and age of students
There is a positive, negative and neutral correlation between the subsidy and age of students. Here the variable A is the impact of subsidy and variable B is the age of students at school. A positive correlation between these two variables means that the subsidy received by the school contains the students who satisfy the eligibility age for it. A negative correlation between these two variables means that even though the schools receive subsidy it does not actually satisfy the age criteria for availing the benefits. This means that the fund is directed not to the required area. Similarly a minimal correlation means that the schools don't satisfy the criteria only to certain extend and so they are not able to avail the benefits of the subsidy.
Correlation between classrooms and student performance
The intention behind connecting classrooms with the latest internet facility is to ensure better performance of the students. In this case the variable A is the number of classrooms connected with internet. The variable B is the performance of the students in the test conducted. The correlations between these two variables are very much relevant because the actual results of the spending are understood by this. A positive correlation means that the classrooms are connected with better internet facilities and the students are provided the most modern internet facilities in the classrooms and the performance level of the students is very higher in the test. This shows that the nation has benefited by investment in facilities. A negative correlation means the classrooms are connected with internet and the students does not show sufficient improvement in their performance. This is a failure. A minimal correlation means that there are neither internet facili ...Show more

## Summary

A correlation may be defined as the relationship between two variables. It is represented by a number. "The correlation is one of the most common and most useful statistics." (Correlation, 2006). Correlation helps to analyze whether two variables are related and it also helps to determine the extend of their relationship with each other…
Author : dachcullen
Save Your Time for More Important Things
Let us write or edit the essay on your topic
"Correlation"
with a personal 20% discount.
Grab the best paper

### Related Essays

Correlation Discussion
Some often used techniques to establish linear correlation are: 1. Scatter-plot: the simplest method is to plot the scores on a graph to identify the extent of covariance between scores. The biggest problem with using only a scatter-plot is that while it does tell us of the direction of the relationship; it gives us no information about its strength and significance.
1 pages (250 words) Essay
Correlation and Natural observation
While research conducted in the laboratory often occurs under a set of controlled conditions, this is not possible when studying incidences as they occur in real life. At such times, we can only conduct co-relational or observational analyses. An example would be the experience of having love in our life and when we lose our love.
3 pages (750 words) Essay
Correlation Assignment
In such a case, we will interview a few students selected randomly from the student population regarding their television watching patterns, then compare these values with their GPA scores using appropriate correlation tests. Generally, we expect a negative correlation between the two variables since GPA scores are seen to be low among students who spend more hours watching television and vice versa.
3 pages (750 words) Essay
Linear Correlation
It was expected to find strong positive correlation between CEO salaries and organization total revenue. Statistical analysis was conducted to conclude evidence in this relationship. The above table demonstrates the average
2 pages (500 words) Essay
Concept of correlation
While, if the correlation is low, than the model is not providing a good fit to the data. The graph above shows that the variables are perfectly positively correlated as an increase in the value of independent variable causes
2 pages (500 words) Essay
Correlation Discussion
If we were comparing this response to individual students’ grades, then Spearman’s rank correlation coefficient would be the best fit. On the other hand, if we had two
1 pages (250 words) Essay
Correlation Discussion
As one method, correlation and covariance matrices may be derived from numeric data columns in which there are two options: storing computation results in an auto-generated worksheet or exhibiting outcomes in a tabular form which may be filled in by color-coded values. This is limited, however, to storage in a single worksheet.
1 pages (250 words) Essay
Correlation and Regression
The fact that longer the time patient is taking drug X, the shorter is size of the tumor depicts the relationship between these two variables. It describes the association or correlation that is found between time on taking drug X and size of the tumor such that both of these variables have a relationship with each other.
2 pages (500 words) Essay
Multiple Correlation and Regression
As earlier established, domestic violence has been studied for quite a long period of time but its effects have been studied on a general basis. This study thus narrows down to look at the psychological
2 pages (500 words) Essay
Oil and gas correlation
The world politics and socio-economic changes are important in determining the trend in consumption of the two commodities. This includes the dollar value. It is important to note that in the
1 pages (250 words) Essay
Get a custom paper written
by a pro under your requirements!
Win a special DISCOUNT!
Put in your e-mail and click the button with your lucky finger