1 . 某良种培育基地正在培育一种水稻新品种.将其与原有的一个优良品种进行对照实验.两种水稻各种植了25亩,所得亩产数据(单位:千克)如下:
品种:357,359,367,368,375,388,392,399,400,405,412,414,415,421,423,427,430,430,434,443,445,445,451,454
品种:363,371,374,383,385,386,391,392,394,394,395,397,397,400,401,401,403,406,407,410,412,415,416,422,430
(1)画出两组数据的茎叶图;
(2)用茎叶图处理现有数据,有什么优点?
(3)通过观察茎叶图,对品种与的亩产量及稳定性进行比较,写出统计结论.
品种:357,359,367,368,375,388,392,399,400,405,412,414,415,421,423,427,430,430,434,443,445,445,451,454
品种:363,371,374,383,385,386,391,392,394,394,395,397,397,400,401,401,403,406,407,410,412,415,416,422,430
(1)画出两组数据的茎叶图;
(2)用茎叶图处理现有数据,有什么优点?
(3)通过观察茎叶图,对品种与的亩产量及稳定性进行比较,写出统计结论.
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