Explain correlation coefficient, Basic Statistics

Assignment Help:

Q. Explain Correlation Coefficient?

Ans.

The strength of a linear correlation is determined by how precisely the y variable shifts as the x variable increases. The two pictures on the right show data with a higher correlation than those on the left.

1619_Explain Correlation Coefficient.png

Data is said to have a perfect correlation if all points lie exactly along a line.

259_Explain Correlation Coefficient1.gif

The correlation coefficient, r, is a measure of the strength of the correlation. It is a number between 1 and +1. +1 indicates a perfect positive correlation and 1 indicated a perfect negative correlation. If r is positive, then there is a positive correlation between the two variables. If r is negative, there is a negative correlation between the variables.


Related Discussions:- Explain correlation coefficient

Characteristics of statistics, Mention the characteristics of statistics. E...

Mention the characteristics of statistics. Explain any two application of Statistics

Cost management, if sales is 6800 and variable costs are 2856 what is the v...

if sales is 6800 and variable costs are 2856 what is the variable cost percentage?

#title.regression., regression line drawn as y=c+1075x,when x was 2,and y w...

regression line drawn as y=c+1075x,when x was 2,and y was 239,given that y intercept was 11.calculate the residual

Angular histogram, Angular Histogram A method or technique for displayin...

Angular Histogram A method or technique for displaying the circular data, which involves the wrapping of the usual histogram around a circle. Each bar in the histogram is center

Measures of dispersion, if a series of three observations has a mean andd m...

if a series of three observations has a mean andd median of 4 and mean absolute deviation of 4/3. what is the series

What does a bookkeeper do?, What does a bookkeeper do? An accountant is ...

What does a bookkeeper do? An accountant is responsible for handling the documents for a business's dealings. Ultimately the dealings will be registered in records within the bu

Accounting cases, Hi I just want to know if you many be able to solve thes...

Hi I just want to know if you many be able to solve these three cases for intermediate accounting class! Thank you

Correlation analysis and coefficient, Individual Music scores Mathematics s...

Individual Music scores Mathematics scores Angela 2 8 Arthur 6 3 Peter 4 9 Mike 5 7 Barbara 7 2 Jane 7 3 Jean 2 9 Ruth 3 8 Alan 5 6 Theresa 4 7 Assess the data using a Correlation

Define overtime pay, Define Overtime Pay Extra time represents time wor...

Define Overtime Pay Extra time represents time worked in excess of 40 times weekly. Whether or not workers are bought overtime will depend on each worker's job obligations and

Determine the probability - baye theorem, In a suburban community, 30% of t...

In a suburban community, 30% of the households use Brand A toothpaste, 27% use Brand B, 25% use Brand C, and 18% use Brand D. In the four groups of households, the proportions of r

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