Question

Two balls are drawn in succession out of a box containing 5 red and 5 white balls. Find the probability that at least 1 bal was red given that the first ball was (A) Replaced before the second draw (B) Not replaced before the second draw (A) Find the probability that at least 1 ball was red, given that the first ball was replaced before the second draw (Simplify your answer. Type an integer or a traction) (B) Find the probability that at least 1 ball was red, given that the first ball was not replaced before the second draw (Simplify your answer. Type an integer or a traction) Question Ver 01206

its 16

Answer 1

Boxe contains 5 Red and 5 white ball. Al ball is reflaced before second draw Platleast I red ball) = 1-P (no red ball) =I-P (both white) P(white) = 3/2 = -2 P(both white) = 1 + x + 2 = 4 : Platleast I ned ball) = 1- $ = 3 B) Ball is not replaced platleast lored ball) =/-P (both white) ( first white) = 72 =

P ( second white) = 4 (: Ball is not g replaced :P (beth white) = { x 4 = 1 x 4 = 32 IP (at least I red ball) = 1-2 = 7 ។
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