茎叶图

销售额 Stem-and-Leaf Plot

Frequency Stem & Leaf

2.00 16 . 17
4.00 17 . 1222
7.00 18 . 1136788
17.00 19 . 11234566667889999
27.00 20 . 000012333334455566677778899
20.00 21 . 00224556666777788889
16.00 22 . 0222344445556689
13.00 23 . 0334455678889
7.00 24 . 0133368
4.00 25 . 2234
2.00 26 . 15
1.00 Extremes (>=272)

Stem width: 10
Each leaf: 1 case(s)

茎叶图

原文：http://www.cnblogs.com/Jessise/p/7653123.html