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

Barter system, Define the barter system with examples where payment is made...

Define the barter system with examples where payment is made in kind instead of cash. A barter system whereby the payment for purchases is made in kind instead of, in cash. i.e.

Use this information to construct the 90% and 95% confidence, From random s...

From random sample of 48 days in a recent year, U.S. gasoline prices had a mean of $3.63. Assume the population standard deviation is $0.21?

What is the margin of error, The National Quality Research Center at the Un...

The National Quality Research Center at the University of Michigan provides a quarterly measure of consumer opinions about products and services (The Wall Street Journal, February

Writing Appropriate Null and Alternative Hypotheses, For this assignment, y...

For this assignment, you will practice creating null and alternative hypotheses of difference based on the presented scenarios. To complete this assignment, consider the three scen

Balance sheet test, told my friend I would help on a test, and now, think i...

told my friend I would help on a test, and now, think its beyond me LOL...want to save face, can you help me?

Management accounting, how cost classification can helpful for planning, co...

how cost classification can helpful for planning, controlling and decision making

ANOVA, If 9 population means are not all equal with a conclusion from ANOVA...

If 9 population means are not all equal with a conclusion from ANOVA, we should expect that?

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