Question

Shara collected two different data sets and labeled them data set S and data set T. Data set S has a correlation coefficient of −0.91, and data set T has a correlation coefficient of 0.89.

Part A: Which data set has a stronger linear relationship?

Part B: How do you know this?

Select two answers, one for Part A and one for Part B.

Answer 1

Data set T has strong linear relationship as it is a perfect positive correlation

What is Correlation Coefficient ?

A correlation coefficient is a number between -1 and 1 that tells you the strength and direction of a relationship between variables.

In other words, it reflects how similar the measurements of two or more variables are across a dataset.

When one variable changes, the other variables change in the same direction or opposite direction.

Perfect positive correlation :When one variable changes, the other variables change in the same direction.

Perfect negative correlation :When one variable changes, the other variables change in the opposite direction.

Part A &B  : Data set T has strong linear relationship as it is a perfect positive correlation

To know more about Correlation Coefficient

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