Illustrate linear correlation, Basic Statistics

Assignment Help:

Q. Illustrate Linear Correlation?

Ans.

In bivariate studies we are often interested in finding out whether there is a relationship between two sets of data. Are SAT scores related to a student's success in their first year of college?

Scattergrams can be used to study these relationships. Normally the independent variable (SAT scores) is on the x-axis and the dependent variable (success in college) is measured on the y-axis.

1518_Illustrate Linear Correlation.gif

If there seems to be a relationship between the two variables, they might be correlated. Here are a few images to help you understand the meaning of positive and negative correlation.

1524_Illustrate Linear Correlation1.png

We say that data is positively correlated if when x increases there is an increase in the y variable as well. Data is negatively correlated if when x increases, the y variable shows a decrease in values. If the values of x and y follow a straight-line path, then there is a linear correlation.


Related Discussions:- Illustrate linear correlation

Time series, what are the importances of time series

what are the importances of time series

Quota sampling, Quota Sampling: in stratified the cost of taking random sam...

Quota Sampling: in stratified the cost of taking random samples from individual strata is often so expensive that interviewers are simply give quota to be filled from different str

Definition of bonded warehouse, Bonded warehouse is a storage area under Cu...

Bonded warehouse is a storage area under Customs authority that is imported dutiable goods on which duty is unpaid and these are stored. Once the duty & other charges are paid the

Index numbers, various types of index numbers constructed in india ????

various types of index numbers constructed in india ????

Find the mean and standard deviation, A travel agency surveyed 38 customers...

A travel agency surveyed 38 customers holidaying in Australia who took their spouses on either a skiing or a golfing vacation.  The data comprises amounts (in hundreds of dollars).

How long it takes a ball to fall to the bottom of a cone, A game that frien...

A game that friends and I try to play to guess how long it takes a ball to fall to the bottom of a cone and how many revolutions around the cone it will take. I do not have a lot

Confidence interval, Questions 1. A genetic experiment with peapods res...

Questions 1. A genetic experiment with peapods resulted in one sample of offspring that consisted of 443 green peapods and 170 yellow peapods.  Construct a 95% confidence inter

Calculate profitability index of project, Your division has been allocated ...

Your division has been allocated $15M for capital projects for the coming year. You've been able to identify five potential projects, as outlined in the table below, each of which

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd