The correlation coefficient between heart weight and body weight in a group of mice is一组小鼠心脏体重与体重的相关系数为r = 0.765. r = 0.765。 Using body weight as the Independent Variable we can conclude that:使用体重作为自变量，我们可以得出结论：Single choice
A
a. 一个。58.5% of the variation in heart weight is explained by the variation in body weights58.5% 的心脏重量变化是由体重变化来解释的
B
b. heart weight is 76.5% of body weight心脏重量占体重的76.5%
C
c. heart weight is 58.5% of body weight心脏重量占体重的58.5%
D
d. 76.5% of the variation in heart weight is explained by the variation in body weights心脏重量变化的 76.5% 是由体重变化来解释的
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