What does the ST distribution box represent

The ST interval represents the initial, slow phase of ventricular repolarization. The ST segment commonly refers to the morphology of the segment between the end of the S wave (the terminal deflection of the QRS) and the beginning of the T wave. A Box Plot is also known as a Box and Whisker Plot and it is a graphical tool used to understand the distribution of numerical data. It helps compare distributions between groups with ease. It guarantees a stable and reliable power supply, providing dependable power for both life and work. Because of the long duration of the plateau phase most contractile cells are in this phase at the same time (more or less). You can learn what they mean with some help. [pdf]