Correlation and Variables in Data

The video tutorial explores the concepts of independent and dependent variables using a running example. The teacher engages students in a discussion to identify which variable is independent, emphasizing the importance of control over variables. The lesson progresses to explain correlation, highlighting strong, moderate, and weak correlations. The teacher uses data visualization to demonstrate how the same data can show different correlations based on the scale used.

What is the independent variable if you control the pace while running?

• Speed

• Pace

• Kilometers

• Time

Why might pace be considered the independent variable in running?

• Because it is not related to running

• Because it directly affects the distance run

• Because it is controlled remotely

• Because it is a fixed value

What term describes the relationship between two connected variables?

• Causation

• Correlation

• Regression

• Deviation

What type of correlation is present when both variables increase together?

• Negative correlation

• No correlation

• Positive correlation

• Inverse correlation

How can the same data set appear different when visualized differently?

• By adding more data points

• By altering the scale or axis labels

• By changing the data values

• By using different colors