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Sagot :
Answer:
Correlation coefficient = 0.945 ( approx) and weight of a student increases as the height of the student increases.
Step-by-step equation:
Here, value of x are 58, 59, 60, 62, 63, 64, 66, 68, 70
Value of y are, 122, 128, 126, 133, 145, 136, 144, 150, 151.
∑x = 570, ∑y= 1236, ∑ = 36234, ∑ = 170694
∑xy=78617
Thus the correlation coefficient,
Where n is the number of the term.
here n = 9
thus, correlation coefficient
r =
Thus, r= 0.94452987512
Which is closed to 0.95 and greater than 1
Therefore, weight of a student increases as the height of the student increases.
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