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negative relationship
In statistics, there is a negative relationship or inverse relationship between two variables if higher values of one variable tend to be associated with lower values of the other. A negative relationship between two variables usually implies that the correlation between them is negative, or—what is in some contexts equivalent— that the slope in a corresponding graph is negative. A negative correlation between variables is also called anticorrelation or inverse correlation.
An example would be a negative cross-sectional relationship between illness and vaccination, if it is observed that where the incidence of one is higher than average, the incidence of the other tends to be lower than average. Similarly, there would be a negative temporal relationship between illness and vaccination if it is observed in one location that times with a higher-than-average incidence of one tend to coincide with a lower-than-average incidence of the other.
==External links==
*http://ordination.okstate.edu/STATS.htm
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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