SOLUTION: Copykwik has four photocopy machines: A, B, C, and D. The probability that a given machine will break down on a particular day is given below. P(A) = 1/48 P(B) = 1/55

Question 1118547: Copykwik has four photocopy machines: A, B, C, and D. The probability that a given machine will break down on a particular day is given below.
P(A) =
1/48
P(B) =
1/55
P(C) =
1/75
P(D) =
1/31

Assuming independence, what is the probability on a particular day that the following will occur?
(a) All four machines will break down (Round your answer to ten decimal places.)

Incorrect: Your answer is incorrect.

(b) None of the machines will break down (Round your answer to three decimal places.)
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
All will break down has probability of (1/48)(1/55)(1/75)(1/31)=0.0000001629
none will break down is NOT 1- that bu
(47/48)(54/55)(74/75)(30/31)=0.918
RELATED QUESTIONS
Copykwik has a four photocopy machines: A B C and D The probability that a given machine... (answered by stanbon)

copykwik has 4 photocopy machines: A,B,C,D the probability that a given machine will... (answered by robertb)

Copykwik has four photocopy machines: A, B, C, and D. The probability that a given... (answered by solver91311)

copyqwik has four photocopy machines a,b,c,d. the probability that a given machine will... (answered by jorel1380)

Copykwwik has four photocopy machines A B C D The probability that a given machine will... (answered by Fombitz)

The probability that machine A will break down on a particular day is P(A) = 1/50;... (answered by stanbon)

suppose a factory contains two machines. there is a 19 % probability that the first... (answered by stanbon)

The probability that a particular machine breaks down on any day is 0.2 and is... (answered by htmentor)

A machine Shop has 100 drill presses and other machines in constant use. The probablility (answered by drcole)