Statistics Reference Sheet - (iv) pa a = p a. (iii) p1 ab = p1 a p1 b. (v) a<bmeans ais less than. Cheat sheet algebra (i) a+z b a b = z (ii) a(b+ c) = a b+ a c.
(iii) p1 ab = p1 a p1 b. (iv) pa a = p a. (v) a<bmeans ais less than. Cheat sheet algebra (i) a+z b a b = z (ii) a(b+ c) = a b+ a c.