Draw Scatterplots & Determine Correlation (Positive & Negative Correlation of Data) - [8-9-1]

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In this lesson, you will learn what positive and negative correlation of data is and how to draw a scatterplot and determine correlation. This is necessary when calculating the correlation coefficient of data in statistics. When we perform statistical analysis, we often want to know how one variable is correlated with another. If it is a positive correlation, then the independent variable and dependent variable both increase. If it is negative correlation, then both random variables run opposite to each other. That is, one increases while the other decreases. If there is no correlation, then the data looks like noise with no noticeable pattern.