[Script Info] Title: [Events] Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text Dialogue: 0,0:00:00.74,0:00:02.99,Default,,0000,0000,0000,,一个统计学家,统计了 Dialogue: 0,0:00:02.99,0:00:04.80,Default,,0000,0000,0000,,一个篮球队中,所有 12 个队员 Dialogue: 0,0:00:04.80,0:00:07.60,Default,,0000,0000,0000,,在一场比赛中所得的分数 Dialogue: 0,0:00:07.60,0:00:12.01,Default,,0000,0000,0000,,然后做了一个茎叶图来展示这些数据 Dialogue: 0,0:00:12.01,0:00:14.04,Default,,0000,0000,0000,,有时候它也叫茎状图 Dialogue: 0,0:00:14.04,0:00:16.10,Default,,0000,0000,0000,,篮球队得了多少分? Dialogue: 0,0:00:16.10,0:00:18.31,Default,,0000,0000,0000,,当你第一次看到这张图 Dialogue: 0,0:00:18.31,0:00:19.95,Default,,0000,0000,0000,,可能有点难懂 Dialogue: 0,0:00:19.95,0:00:22.44,Default,,0000,0000,0000,,在”叶子“下,我们有 0,1,2 Dialogue: 0,0:00:22.44,0:00:23.86,Default,,0000,0000,0000,,在这里你可以看到所有的这些 Dialogue: 0,0:00:23.86,0:00:26.19,Default,,0000,0000,0000,,那这个图和每个运动员所得的分 Dialogue: 0,0:00:26.19,0:00:29.26,Default,,0000,0000,0000,,有什么联系呢? Dialogue: 0,0:00:29.26,0:00:31.75,Default,,0000,0000,0000,,解释茎叶图的方式 Dialogue: 0,0:00:31.75,0:00:33.91,Default,,0000,0000,0000,,是,它的叶子包含了, Dialogue: 0,0:00:33.91,0:00:38.47,Default,,0000,0000,0000,,这个统计学家所做的这张图中,叶子代表了最小的数字,或 Dialogue: 0,0:00:38.47,0:00:41.40,Default,,0000,0000,0000,,每个运动员所得的分 Dialogue: 0,0:00:41.40,0:00:42.86,Default,,0000,0000,0000,,的个位数 Dialogue: 0,0:00:42.86,0:00:45.25,Default,,0000,0000,0000,,而茎,代表了十位数 Dialogue: 0,0:00:45.25,0:00:48.87,Default,,0000,0000,0000,,通常叶子会代表每个数值最右边的位数 Dialogue: 0,0:00:48.87,0:00:50.70,Default,,0000,0000,0000,,也就是个位数,而茎 Dialogue: 0,0:00:50.70,0:00:52.84,Default,,0000,0000,0000,,会包含其它位数 Dialogue: 0,0:00:52.84,0:00:54.48,Default,,0000,0000,0000,,所以这个表的用处是,它给了一个 Dialogue: 0,0:00:54.48,0:00:57.07,Default,,0000,0000,0000,,每个运动员位置的分布图 Dialogue: 0,0:00:57.07,0:00:59.31,Default,,0000,0000,0000,,你可以看到,大多数运动员 Dialogue: 0,0:00:59.31,0:01:01.44,Default,,0000,0000,0000,,得的分数的十位数是 0 Dialogue: 0,0:01:01.44,0:01:04.21,Default,,0000,0000,0000,,一些运动员的分数十位数是 1 Dialogue: 0,0:01:04.21,0:01:07.98,Default,,0000,0000,0000,,只有一个运动员的分数的十位数是 2 Dialogue: 0,0:01:07.98,0:01:09.45,Default,,0000,0000,0000,,他其实得了 20 分 Dialogue: 0,0:01:09.45,0:01:11.98,Default,,0000,0000,0000,,我会把这些数据都写下来 Dialogue: 0,0:01:11.98,0:01:13.81,Default,,0000,0000,0000,,可能这样能帮助你 Dialogue: 0,0:01:13.81,0:01:15.42,Default,,0000,0000,0000,,更好地了解它 Dialogue: 0,0:01:15.42,0:01:18.92,Default,,0000,0000,0000,,我会用紫色写 0 Dialogue: 0,0:01:18.92,0:01:23.02,Default,,0000,0000,0000,,一共有,让我们看看,1,2,3,4,5,6,7 个运动员 Dialogue: 0,0:01:23.02,0:01:25.07,Default,,0000,0000,0000,,他们的分数的十位数是 0 Dialogue: 0,0:01:25.07,0:01:28.46,Default,,0000,0000,0000,,所以,1,2,3,4,5,6,7 Dialogue: 0,0:01:31.33,0:01:33.04,Default,,0000,0000,0000,,我写了 7 个 0 Dialogue: 0,0:01:33.04,0:01:37.09,Default,,0000,0000,0000,,这个运动员分数的个位数也是 0 Dialogue: 0,0:01:37.09,0:01:39.80,Default,,0000,0000,0000,,这个运动员,我会用所有的颜色 Dialogue: 0,0:01:39.80,0:01:43.60,Default,,0000,0000,0000,,这个运动员分数的个位数也是 0 Dialogue: 0,0:01:43.60,0:01:46.22,Default,,0000,0000,0000,,这个运动员的个位数是 2 Dialogue: 0,0:01:46.22,0:01:48.71,Default,,0000,0000,0000,,所以他一共得了2 分 Dialogue: 0,0:01:48.71,0:01:51.79,Default,,0000,0000,0000,,这个运动员,我来用橙色,这个运动员 Dialogue: 0,0:01:51.79,0:01:54.33,Default,,0000,0000,0000,,分数的个位数是 4 Dialogue: 0,0:01:54.33,0:01:58.58,Default,,0000,0000,0000,,这个运动员的个位数是 7 Dialogue: 0,0:01:58.58,0:02:02.48,Default,,0000,0000,0000,,这个运动员的个位数是 7 Dialogue: 0,0:02:02.48,0:02:05.96,Default,,0000,0000,0000,,另外,让我看看,我基本上用了所有的颜色 Dialogue: 0,0:02:05.96,0:02:08.53,Default,,0000,0000,0000,,这个运动员分数的个位数是 9 Dialogue: 0,0:02:08.53,0:02:11.46,Default,,0000,0000,0000,,所以,一个运动员得了 0 分 Dialogue: 0,0:02:11.46,0:02:14.85,Default,,0000,0000,0000,,0,2,4,7,9 和 9 Dialogue: 0,0:02:14.85,0:02:16.87,Default,,0000,0000,0000,,但你可以看到, Dialogue: 0,0:02:16.87,0:02:18.41,Default,,0000,0000,0000,,说 0 是个十位数有点愚蠢 Dialogue: 0,0:02:18.41,0:02:19.99,Default,,0000,0000,0000,,你甚至可以这里留空白 Dialogue: 0,0:02:19.99,0:02:21.62,Default,,0000,0000,0000,,但是0 让我们知道他们没有 Dialogue: 0,0:02:21.62,0:02:24.70,Default,,0000,0000,0000,,在十位数上得任何分数 Dialogue: 0,0:02:24.70,0:02:27.94,Default,,0000,0000,0000,,这些是这 7 个运动员的真实分数 Dialogue: 0,0:02:27.94,0:02:31.70,Default,,0000,0000,0000,,我们去到茎叶图的下一列 Dialogue: 0,0:02:31.70,0:02:34.06,Default,,0000,0000,0000,,在这里,所有的数字开始于 Dialogue: 0,0:02:34.06,0:02:37.76,Default,,0000,0000,0000,,或所有的数字开始于 1 Dialogue: 0,0:02:37.76,0:02:40.94,Default,,0000,0000,0000,,有 4 个运动员 Dialogue: 0,0:02:40.94,0:02:44.71,Default,,0000,0000,0000,,所以,1,1,1 和 1 Dialogue: 0,0:02:44.71,0:02:46.60,Default,,0000,0000,0000,,这里也有一个运动员 Dialogue: 0,0:02:46.60,0:02:51.25,Default,,0000,0000,0000,,他的个位数,是一个 1 Dialogue: 0,0:02:51.25,0:02:54.09,Default,,0000,0000,0000,,所以这个运动员得了 11 分 Dialogue: 0,0:02:54.09,0:02:57.15,Default,,0000,0000,0000,,1 在十位数,1 在个位数 Dialogue: 0,0:02:57.15,0:02:59.37,Default,,0000,0000,0000,,这个运动员的分数也是 11 Dialogue: 0,0:02:59.37,0:03:02.77,Default,,0000,0000,0000,,1 在十位数,1 在个位数 Dialogue: 0,0:03:02.77,0:03:06.08,Default,,0000,0000,0000,, Dialogue: 0,0:03:06.08,0:03:08.35,Default,,0000,0000,0000,, Dialogue: 0,0:03:08.35,0:03:10.25,Default,,0000,0000,0000,, Dialogue: 0,0:03:10.25,0:03:14.07,Default,,0000,0000,0000,, Dialogue: 0,0:03:14.07,0:03:15.77,Default,,0000,0000,0000,, Dialogue: 0,0:03:15.77,0:03:18.02,Default,,0000,0000,0000,, Dialogue: 0,0:03:18.02,0:03:20.76,Default,,0000,0000,0000,, Dialogue: 0,0:03:20.76,0:03:23.16,Default,,0000,0000,0000,, Dialogue: 0,0:03:23.16,0:03:25.71,Default,,0000,0000,0000,, Dialogue: 0,0:03:25.71,0:03:27.19,Default,,0000,0000,0000,, Dialogue: 0,0:03:27.19,0:03:29.39,Default,,0000,0000,0000,, Dialogue: 0,0:03:29.39,0:03:33.22,Default,,0000,0000,0000,, Dialogue: 0,0:03:33.22,0:03:37.30,Default,,0000,0000,0000,, Dialogue: 0,0:03:37.30,0:03:38.42,Default,,0000,0000,0000,, Dialogue: 0,0:03:38.42,0:03:40.16,Default,,0000,0000,0000,, Dialogue: 0,0:03:40.16,0:03:43.03,Default,,0000,0000,0000,, Dialogue: 0,0:03:43.03,0:03:45.37,Default,,0000,0000,0000,, Dialogue: 0,0:03:45.37,0:03:48.18,Default,,0000,0000,0000,, Dialogue: 0,0:03:48.18,0:03:49.47,Default,,0000,0000,0000,, Dialogue: 0,0:03:49.47,0:03:51.26,Default,,0000,0000,0000,, Dialogue: 0,0:03:51.26,0:03:54.11,Default,,0000,0000,0000,, Dialogue: 0,0:03:54.11,0:03:55.70,Default,,0000,0000,0000,, Dialogue: 0,0:03:55.70,0:03:58.21,Default,,0000,0000,0000,, Dialogue: 0,0:03:58.21,0:04:00.45,Default,,0000,0000,0000,, Dialogue: 0,0:04:00.45,0:04:02.62,Default,,0000,0000,0000,, Dialogue: 0,0:04:02.62,0:04:04.36,Default,,0000,0000,0000,, Dialogue: 0,0:04:04.36,0:04:06.36,Default,,0000,0000,0000,, Dialogue: 0,0:04:06.36,0:04:09.19,Default,,0000,0000,0000,, Dialogue: 0,0:04:09.19,0:04:10.92,Default,,0000,0000,0000,, Dialogue: 0,0:04:10.92,0:04:12.53,Default,,0000,0000,0000,, Dialogue: 0,0:04:12.53,0:04:16.23,Default,,0000,0000,0000,, Dialogue: 0,0:04:16.23,0:04:27.12,Default,,0000,0000,0000,, Dialogue: 0,0:04:27.12,0:04:33.18,Default,,0000,0000,0000,, Dialogue: 0,0:04:33.18,0:04:34.01,Default,,0000,0000,0000,, Dialogue: 0,0:04:34.01,0:04:38.57,Default,,0000,0000,0000,, Dialogue: 0,0:04:38.57,0:04:40.77,Default,,0000,0000,0000,, Dialogue: 0,0:04:40.77,0:04:42.35,Default,,0000,0000,0000,, Dialogue: 0,0:04:46.44,0:04:53.11,Default,,0000,0000,0000,, Dialogue: 0,0:04:53.11,0:05:03.49,Default,,0000,0000,0000,, Dialogue: 0,0:05:03.49,0:05:05.06,Default,,0000,0000,0000,, Dialogue: 0,0:05:05.06,0:05:06.59,Default,,0000,0000,0000,, Dialogue: 0,0:05:06.59,0:05:22.23,Default,,0000,0000,0000,, Dialogue: 0,0:05:22.23,0:05:23.94,Default,,0000,0000,0000,, Dialogue: 0,0:05:23.94,0:05:25.15,Default,,0000,0000,0000,, Dialogue: 0,0:05:25.15,0:05:27.03,Default,,0000,0000,0000,, Dialogue: 0,0:05:27.03,0:05:28.40,Default,,0000,0000,0000,, Dialogue: 0,0:05:28.40,0:05:30.28,Default,,0000,0000,0000,, Dialogue: 0,0:05:30.28,0:05:40.66,Default,,0000,0000,0000,, Dialogue: 0,0:05:40.66,0:05:42.66,Default,,0000,0000,0000,, Dialogue: 0,0:05:42.66,0:05:44.72,Default,,0000,0000,0000,, Dialogue: 0,0:05:44.72,0:05:49.49,Default,,0000,0000,0000,, Dialogue: 0,0:05:49.49,0:05:52.20,Default,,0000,0000,0000,, Dialogue: 0,0:05:52.20,0:05:57.54,Default,,0000,0000,0000,,