An electrocardiogram (EKG) is an interpretation of the electrical activity of the heart over time.

An electrocardiogram (EKG) is an interpretation of the electrical activity of the heart over time. Electrical sensors placed at various locations of the body detect small electrical changes produced by the beating heart. A typical pattern is shown in the diagram, where the spacing between adjacent vertical lines represents a time increment of 0.505 s. What is the heart rate (in beats per minute) of the patient during the EKG displayed? answer in bpm