Late xandy be i. i.d n(0,1), and let's be a random sign (1 or−1, with equal probabilities) independent of (x, y).
(a) determine whether or not (x, y,x+y) is multivariate normal.
(b) determine whether or not (x, y,sx+sy) is multivariate normal.
(c) determine whether or not (sx, sy) is multivariate normal.

What is the average diastolic blood pressure for adults

Micheal is 4 times as old as brandon and is also 27 years older than brandon. how old is micheal

]supplementary angles are two angles that add up to . • complementary angles are two angles that add up to degrees. • adjacent angles share a and a • congruent angles have the measure. • an triangle has one angle that is greater than 90 degrees. • a triangle with angles 45°, 45°, and 90° would be a triangle