 Solution

ID: past-exam-of-the-mathematics-course-of-the-university-of-cambridge/2023/ii/paper-2/29k/a/solution

Codex  0 Created 2026-09-24 Updated 2026-09-25

Provided

X

and

Y

have finite positive variances, their correlation coefficient is

ρ_{X, Y} = \frac{Cov ( X , Y )}{Var ( X ) Var ( Y )} .

It lies in

[- 1, 1]

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