Marine bacteria surviving doses of X-rays
Drag the red line on the vertical axis of the scatterplot on the left to linearise the relationship with a log transformation. (Use the arrow keys to fine-tune.) A least squares line is fitted to the transformed variables and shown on the scatterplot.
The scatterplot on the right always displays the raw variables and shows the least squares line from the right as an equivalent curve on the original scale.
The data set contains the numbers of a marine bacterium surviving exposure to 200 kilovolt X-rays for periods ranging from t=1 to t=15 intervals of 6 minutes.