DISCUSSION

  

Please discuss, elaborate, and reflect on the following from chapter 6. 

Give examples and elaborate on the applications of the topic. don’t plagiarize. 

1. Explain the differences between univariate and bivariate distribution.

2. Compare correlation and Pearson’s correlation. 

3. Where do you apply correlation?

4. Explain Spurious Correlation?

5. Compare correlation and regression. Describe the situations where they can be applied.

6. What are the conditions where the regression results will give reliable results?

Answer the following questions using the Data Set 6-1

Data Set 6-1

The correlation between the number of PhDs and the number of mules in a state used to be approximately -.90. Accept the following simplified summary data.

                                   PhDs     Mules

Mean                           40           200

Standard Deviation   15              50

In questions based on Data Set 6-1, the task is to predict the number of mules for a state, given the number of PhDs.

1. Look at Data Set 6-1. For a state with 60 PhDs what would be the predicted number of mules?

2. What would be the b coefficient in Data Set 6-1?

3. Look at Data Set 6-1. For a state with no PhDs what is the predicted number of mules?