请问答案中提到的observation 在哪里？看不出来？
问题如下图：
选项：
A. 
B. 
C. 
解释：
NO.PZ2017092702000044 No.PZ2017092702000044
NO.PZ2017092702000044 wless frequent thyen preciation. in the 0.0 to 2.0 intervoccurre20% of the time. A is correct. Twenty observations lie in the interv\"0.0 to 2.0,\" ansix observations lie in the 2.0 to 4.0 interval. Together, they represent 26/48, or 54.17% of all observations, whiis more th50%.这道题 图还是看不懂 要估计着数字么 感觉数字对不大上 横轴纵zhou不太懂什么意思
wless frequent thyen preciation. in the 0.0 to 2.0 intervoccurre20% of the time. A is correct. Twenty observations lie in the interv\"0.0 to 2.0,\" ansix observations lie in the 2.0 to 4.0 interval. Together, they represent 26/48, or 54.17% of all observations, whiis more th50%.b的题目是什么意思？
这道题26是怎么看出来的呀，纵轴每个点对应几有点看不明白
wless frequent thyen preciation. in the 0.0 to 2.0 intervoccurre20% of the time. A is correct. Twenty observations lie in the interv\"0.0 to 2.0,\" ansix observations lie in the 2.0 to 4.0 interval. Together, they represent 26/48, or 54.17% of all observations, whiis more th50%. b为什么是错的，语句语法其实本来就不对，有其他原因吗
