The table below shows the age of some participants in a quiz competition, and the number of questions they could answer correctly:
Age (years) (x)
15
21
17
22
16
19
18
Number of questions they could answer (y)
17
17
17
17
17
17
17
What is the correlation coefficient for the data, and what does it represent?
0; it represents no correlation between x and y 1; it represents a linear positive correlation between x and y - 1; it represents a linear negative correlation between x and y 1; it represents
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