Question

FIRST QUESTION:
A SOCK DRAWER HAS 2 BLUE PAIR,4 WHITE PAIR, 4 BLACK PAIR. WHAT IS THE PROBABILITY YOU WILL PICK OUT A WHITE PAIR OR A BLUE PAIR. YOU REPLACE EACH PAIR AFTER YOU PICK.

SECOND QUESTION:
WHAT IS THE PROBABILITY YOU CAAN PICK OUT 1 BLUE, 1 WHITE, OR 1 BLACK. YOU REPLACE EACH PAIR AFTER PICKING.

Answer 1

white pair = 4/10 = .4
blue pair = 2/10 = .2
sum = .6 for either or

p blue = .2
p not blue = .8
so p one and only one blue in three picks
= .2 * .8 * .8

do similar for white and black and multiply