A patient is given drip feed containing a particular chemical and its concentration in his blood is measured, in suitable units at one hour intervals. The doctors believe that a linear relationship will exist between the variables. Solve for the correlation coefficient, r. Time, x (hours) Concentration, y 1 3. 2.4 4.3 5.0 6.9 9.1 11.4 13.5 0.972 0.992 0.984 0.921

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A patient is given drip feed containing a particular chemical and its concentration
in his blood is measured, in suitable units at one hour intervals. The doctors
believe that a linear relationship will exist between the variables. Solve for the
correlation coefficient, r.
3
4
6.
Time, x (hours)
Concentration, y
0.
1
2.4
4.3
5.0
6.9
9.1
11.4
13.5
O 0.972
O 0.992
O0.984
O 0.921
Transcribed Image Text:A patient is given drip feed containing a particular chemical and its concentration in his blood is measured, in suitable units at one hour intervals. The doctors believe that a linear relationship will exist between the variables. Solve for the correlation coefficient, r. 3 4 6. Time, x (hours) Concentration, y 0. 1 2.4 4.3 5.0 6.9 9.1 11.4 13.5 O 0.972 O 0.992 O0.984 O 0.921
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