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根据下面的变量X和变量Y的散点图（图24-1），可以看出这两个变量的Pearson相关系数r的取值范围是（　　）。[2016年真题]图24-1

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A、r≤1

B、0≤r＜1

C、r≥1

D、－1＜r＜0

参考答案:

D

由图中可以看出，变量X和Y之间存在负线性相关关系，因此这两个变量的Pearson相关系数r的取值范围是－1＜r＜0。

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