Perfect Correlation I

MediumProbability

Suppose that $X$ and $Y$ are perfectly correlated i.e. $\rho(X,Y) = 1$ with $\sigma_Y > \sigma_X$ . Find the correlation of $X+Y$ and $X-Y$ .

Step-by-step hints are a Pro feature.Get started

Create a free account to answer and track your progress.

Practice like a quant

Create a free account to answer questions and track your progress — across 2,000+ interview questions.