SOLUTION: copyqwik has four photocopy machines a,b,c,d. the probability that a given machine will break down on a particular day is p(a)=1/50 p(b)= 1/60 p(c)= 1/75 p(d)= 1/50. Assuming i

Question 450996: copyqwik has four photocopy machines a,b,c,d. the probability that a given machine will break down on a particular day is p(a)=1/50 p(b)= 1/60 p(c)= 1/75 p(d)= 1/50. Assuming independance what is the probability on a particular day that all 4 machines will break down? and none will break down?
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
Probability that all 4 are broken down:1/50x1/60x1/75x1/50=1/11250000.
-------------
Probability that none will break down=49/50x59/60x74/75x49/50=10482766/11250000..
RELATED QUESTIONS
Copykwwik has four photocopy machines A B C D The probability that a given machine will... (answered by Fombitz)

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

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

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

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

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

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