Enter each shot’s ring score to compute the mean, within-group spread and stability metrics, then generate a score trend for shooting-training review.
Enter every shot value. Total, mean, best, worst and range describe accuracy, while the sample standard deviation SD and coefficient of variation CV describe how repeatable the group is. Read them together: a high average with a large SD means the result came from luck, so work on a repeatable position rather than chasing single high shots. Pick the scoring system first since it changes the reference values. Everything is computed locally.
射擊（環數/穩定性）分析。體育競技工具，幫助計算與分析運動資料。
訓練、賽程與運動資料的跟蹤計算。