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

Probability assessments, According to a weather forecaster's subjective pro...

According to a weather forecaster's subjective probability assessments, the probability of record-breaking rain during this year in Jamshedpur is 0.01 . However, if Ranchi has a r

#binomial probability, they gave me n=30 and p=.23 to get the answers for P...

they gave me n=30 and p=.23 to get the answers for P(20,x,23)= and P(x.23)=

Sequential sampling, Sequential Sampling: This is somewhat complex sample d...

Sequential Sampling: This is somewhat complex sample design where the ultimate size of the sample is not fixed in advance but is determined according to mathematical decisions on t

Probability, what is an exclusive probability

what is an exclusive probability

Explain different regions of a pressure-volume, 1. Sketch and explain diffe...

1. Sketch and explain different regions of a pressure-volume diagram of a full cardiac cycle. 2. Sketch and explain the relationship between cardiac output and end-diastolic vol

Covariance , how can write co variance using summation notation

how can write co variance using summation notation

Ms 4, 2. From the following cost, production and sales data of Decors Motor...

2. From the following cost, production and sales data of Decors Motor Ltd., prepare comparative income statement for three years under (i) absorption costing method, and (ii) margi

Probability, Consider the two events A and B with P(A) = 0.4 and P(B) = 0.3...

Consider the two events A and B with P(A) = 0.4 and P(B) = 0.3. (a) If A and B are independent then compute the probability that Both A and B happen

Calculate s.d, Less than 5 yrs 22 5-10 18 10-20 5 20-30 4 More than 30 1

Less than 5 yrs 22 5-10 18 10-20 5 20-30 4 More than 30 1

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