What Uncorrelated is
Uncorrelated refers to two variables that have no relationship with each other. Uncorrelated variables are not related in any way and do not move in the same direction. They may move in opposite directions, or they may not move at all.
Steps for Uncorrelated:
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Identify the two variables that you would like to assess for correlation.
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Calculate the correlation coefficient for the two variables, which is a numerical representation of the strength of the relationship between them.
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Interpret the correlation coefficient. A correlation coefficient of 0 indicates that the two variables are uncorrelated, while values close to 1 or -1 indicate a strong correlation.
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If the correlation coefficient is 0, then the two variables are uncorrelated. However, a correlation coefficient of 0 does not necessarily mean that there is no relationship between the two variables; it simply means that there is not a linear relationship.
Examples
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When comparing the academic performance of students in two different classes, an uncorrelated result would indicate that there is no significant difference between the two classes.
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When comparing the heights of adults in two different countries, an uncorrelated result would indicate that there is no significant difference in average height between the two countries.
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When comparing the average weight of adults in two different cities, an uncorrelated result would indicate that there is no significant difference in average weight between the two cities.