这题给的数字都是奇数，0-2怎么找出来的
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No.PZ2021061603000013 (选择题)
来源: 原版书
The following is a frequency polygon of monthly exchange rate changes in the US dollar/Japanese yen spot exchange rate for a four-year period. A positive change represents yen appreciation (the yen buys more dollars), and a negative change represents yen depreciation (the yen buys fewer dollars).
Based on the chart, yen appreciation:
您的回答, 正确答案是: A
A
正确occurred more than 50% of the time
B
was less frequent than yen depreciation
C
in the 0.0 to 2.0 interval occurred 20% of the time
数据统计(全部)
做对次数: 28
做错次数: 14
正确率: 66.67%
数据统计(个人)
做对次数: 1
做错次数: 0
正确率: 100.00%
解析
A is correct. Twenty observations lie in the interval "0.0 to 2.0"and six observations lie in the "2.0 to 4.0"interval. Together, they represent 26/48, or 54.17%, of all observations, which is more than 50%.
