The horizontal axis of the graph represents sample numbers from 0 to 20 in increments of 1, while the vertical axis represents fraction defective from 0.00 to 0.12 in increments of 0.01. A horizontal line, for UCL sub p equals 0.10, is present at 0.10 on the vertical axis. A horizontal line, for p bar equals 0.04, is present at 0.04 on the vertical axis. A horizontal line, for LCL sub p equals 0.00, is present at 0.00 on the vertical axis. Around 20 points are seen scattered throughout the graph.