Question

I only need (F) thank you.

) and edge firish. The results of 101 parts are summarized as follows nd let 8 denete the evea that sangle has mete, edge nm^ par, is selected at redom, determine the following probebate. three decimal places (eg. 98.765) Round ) PLA)-Tas ) PlAne)-621

Answer 1

f) Let A denote the event that a sample has excellent surface finish, and let B denote the event that a sample has excellent edge finish.

We want to find, $P(A' \cup B)$

$P(A' \cup B) = P(A') + P(B) - P(A' \cap B)$

$P(A' \cup B) = (15/101) + (93/101) - (10/101)$

$P(A' \cup B) = 98/101$

$=>P(A' \cup B) = 0.970$