摘要
John Turkey,a famous,mathematical statistician developed the stem-and-leaf diagrams,a technique for summarizing a data set without losing the individual observation.This technique is particularly useful for detecting patterns and extreme data scores.It helps us to explore a data set to gain initial insights about the data.To make a stem-and-leaf diagram,
John Turkey, a famous, mathematical statistician developed the stem-and-leaf diagrams, a technique for summarizing a data set without losing the individual observation.
