# Statistics Lectures - 13 (Correlation)

A series of free Statistics Lectures with examples & solutions in videos.

These lectures introduce scatter plots and discuss Pearson's r correlation.

This is page thirteen of the series of free video lessons, "Statistics Lectures".

### Statistics - Lecture 36

Scatter Plots
Scatter Plots are a method of graphically displaying bivariate data.

### Statistics - Lecture 37

Pearson's r Correlation
Pearson's r measure the strength of the linear relationship between two variables.
Pearson's r is always between -1 and 1.

### Statistics - Lecture 38

Hypothesis Testing with Pearson's r
1. Define Null and Alternative Hypotheses.
2. State Alpha.
3. Calculate Degrees of Freedom.br> 4. State Decision Rule.
5. Calculate Test Statistic
6. State Results.
7. State Conclusion.

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