24) WHile testing the quality of 8 machines, a manufacturer notes that 4 machines pass quality inspections and 4 machine do not. A buyer randomly selects two machines (no replacement.)
A) Describe the sample space with a tree diagram and assign probabilities to the branches.
B) What is the probability that the buyer selects two machines that did not pass the inspection?
C) WHat is the probability that the buyer selects one machine that passes the inspection and one that does not?
D) What is the probabilty that the buyer selects a machine that passed given that he selected a machine that did?
WIth formulas , could someone please help me?
2006-11-03 06:44:46 · 1 answers · asked by Heather N 2 in Business & Finance ➔ Other - Business & Finance
a
b 4/8*3/7=3/14
c 4/7
d do you mean what is the prob that the buyer selects a second machine that passed after choosing a first one that did? if yes, then it is 3/7
2006-11-07 06:41:02 · answer #1 · answered by Anonymous · 0⤊ 0⤋