In: Statistics and Probability

2. Describe the difference between correlation and prediction (regression) analysis approaches?

In case of correlation between two variables the coefficient of correlation measures the strength of the association which lies between two variables it actually measures the strength of the variables and in which direction they are really associated which may be positive or it is negative . more the value of correlation coefficient more would be the strength of correlation for the measure of association the correlation coefficient generally lies between -1 to +1 Inclusive . where -1 means perfect negative correlation , + 1 means perfect positive correlation and 0 means no correlation .

But on the other half in regression analysis we actually put the value in scatter plot and try to fit those points with best possible line that is the regression line and is an it is used to estimate one variable with help of another variable it is generally used for prediction purpose .

They both are statistical tools for analysis .

Explain the difference between correlation analysis and
regression analysis. Give an example of a lurking variable. If a
statistician computed a value of r = -2.83 what would you tell that
statistician? Under what circumstances can we calculate r? Can the
regression equation be assumed to hold 100 years from now? Are
there other correlation coefficients other than the Pearson Product
Moment Correlation Coefficient

True or False: Regression analysis is used for
prediction, while correlation analysis is used to measure the
strength of the association between two numerical
variables.
A. True
B. False
In performing a regression analysis involving two
numerical variables, we are assuming
A. the variances of X and Y are equal.
B. the variation around the line of regression is the same for
each X value.
C. that X and Y are independent.
D. All of these.
Which of the following...

What is regression analysis? When would you use it? What is the
difference between simple regression and multiple regression?

In your own words, describe the primary difference between
consequentialist and non-consequentialist approaches to ethics.
Choose one of the major theories associated with consequentialism:
what objections might be made to this theory? Choose one of the
major theories associated with non-consequentialism: what
objections might be made to this theory?

7.
Explain the importance of regression analysis, include three ways.
8. What is the difference between correlation and
regression?
9. What are the new considerations for multiple
regression?
10. Explain the method of stepwise regression.
11. What are the assumptions of the multiple regression
model?

7. Explain the importance of regression analysis, including
three ways.
8. What is the difference between correlation and
regression?
9. What are the new considerations for multiple regression?
10. Explain the method of stepwise regression.
11. What are the assumptions of the multiple regression
model

Describe the difference between simple and multiple correlation
and give examples of each. Discuss the benefits/drawbacks of using
each

What is the difference between simple linear regression and
multiple linear regression?
What is the difference between multiple linear regression and
logistic regression?
Why should you use adjusted R-squared to choose between models
instead of R- squared?
Use SPSS to:
Height (Xi)
Diameter (Yi)
70
8.3
72
10.5
75
11.0
76
11.4
85
12.9
78
14.0
77
16.3
80
18.0
Create a scatterplot of the data above. Without conducting a
statistical test, does it look like there is a linear...

Explain the difference between causation due to correlation and
causation that isn't caused by correlation

what are the difference between experimental research and
correlation research
essay on difference between experimental research and correlation
research

ADVERTISEMENT

ADVERTISEMENT

Latest Questions

- Use 3 steps of the Runge-Kutta (fourth order) method to solve the following diļ¬erential equation to...
- One example of Global Marketing that has been unsuccessful. Provide a brief description of the example...
- Shan Foods Pvt Ltd. factory overhead rate is Rs. 3 per hour. Budgeted overhead for 3000...
- Shan Foods Pvt Ltd. factory overhead rate is Rs. 3 per hour. Budgeted overhead for 3000...
- 1- Describe in detail who first introduced the Confidence Intervals & Estimation process in Statistics, his...
- Examine the three samples obtained independently from three populations: Population Data Item Group 1 Group 2...
- A study of the amount of time it takes a mechanic to rebuild the transmission for...

ADVERTISEMENT