Which correlation coefficient represents a moderate negative correlation?r = –0.04 r = –0.24r = –0.64r = –0.94

The sign of a correlation coefficient shows its direction: a negative value means the variables tend to move in opposite directions. Its distance from 0 indicates strength; –0.64 represents a moderate negative relationship, while –0.94 is very strong and values closer to 0 are weak. So the correct choice is r = –0.64.

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