X~Bernoulli(1/4) Y=-7X, whats the cdf for Fxy ?
My attempt
---------
Fxy = P(X<=x,X<=-y/7) = 0 for min(x,-y/7) < 0
1/4 for 0 <= min(x,-y/7) < 1
1 for min(x,-y/7) >= 1
Is this right?
X~Bernoulli(1/4) Y=-7X, whats the cdf for Fxy ?
My attempt
---------
Fxy = P(X<=x,X<=-y/7) = 0 for min(x,-y/7) < 0
1/4 for 0 <= min(x,-y/7) < 1
1 for min(x,-y/7) >= 1
Is this right?