NO.PZ2018062016000044
问题如下:
Return is positive refers to yen appreciation and negative refers to yen depreciation. Compared to yen depreciation, yen appreciation is:
选项:
A.
more frequent
B.
less frequent.
C.
the same frequent.
解释:
A is correct. .From the picture ,we can clearly know that positive return is more frequent.
这道题问的是日元升值和贬值的次数哪个多。
纵轴是频次(Frequency),
横轴是“return interval midpoint”,所以每个值对应的都是return这个区间的中点。以1.0%为例,对应的区间就是0%-2%;3.0%对应的区间就是2%-4%,以此类推。
根据题干可知,return>0%对应日元升值,反之return<0%对应日元贬值(Return is positive refers to yen appreciation and negative refers to yen depreciation)。
通过图像可以看出,return>0%的情况为1.0%对应的frequency(20),和3.0%对应的frequency(6)。总频次一共是20+6=26。而贬值时的情况为-5.0%对应的3,-3.0%对应的8,和-1.0%对应的11,总频次为22。
所以日元升值的频率更高(26>22),选择A选项。
Return is positive refers to yen appreciation and negative refers to yen depreciation.
如果题目不给这句话,怎么判断呢?图片中是dollar/yen,是不是可以理解为大于0就是yen贬值呢?