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# Regression and Correlation Analysis

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For the following data on 10 persons, construct a scatterplot showing the relationship between age and number of children, and describe the relationship in verbal terms.

Person (i) Age(X) Number of Children (Y)
1 42 5
2 26 2
3 38 2
4 23 1
5 21 0
6 19 0
7 79 6
8 25 2
9 75 4
10 67 3

My question is how will the data be displayed on a scatterplot showing the relationship between age and the number of children? Will I be able to describe the data and make a conclusion based on the information from the scatterplot that shows the relationship between age and the number of children?

https://brainmass.com/statistics/regression-analysis/regression-correlation-analysis-414017

#### Solution Summary

The expert constructs a scatterplot showing the relationship between age and number of children.

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## Correlation and regression analysis.

QUESTIONS:
(a) How does correlation analysis differ from regression analysis?
(b) What does a correlation coefficient reveal?
(c) State the quick rule for a significant correlation and explain its limitations.
(d) What sums are needed to calculate a correlation coefficient?
(e) What are the two ways of testing a correlation coefficient for significance?

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