第1题
第2题
正确答案是()
A. measuring
B. understanding
C. characterizing
D. charting
第3题
第6题
The correlation coefficient (r) for measuring the connection between two variables (x and y) has been calculated as 0.6. How much of the variation in the dependent variable (y) is explained by the variation in the independent variable (x)?
A、36%
B、40%
C、60%
D、64%
第7题
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