SOLUTION: Hello ..using the hypergeometric probability distribution formula Used photocopy machines are returned to the supplier, cleaned, and then sent back out on lease agreements. M

Question 364908: Hello
..using the hypergeometric probability distribution formula
Used photocopy machines are returned to the supplier, cleaned, and then sent back out on lease agreements. Major repairs are made, however, and as a result, some customers receive malfunctioning machines. Among eight used photocopiers available today, three are malfunctioning. A customer wants to lease four machines immediately. To meet the customer's deadline, four of the eight machines are randomly selected and, without further checking, shipped to the customer...what is the probability that the customer receives
(a) no malfunctioning machines
(b) at least one malfunctioning machine?

thank you
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
a)
b)Events a and b are coomplementary, and so the probability for this is
RELATED QUESTIONS
Mr. Pike's office has two photocopy machines. The older machine takes six hours to make... (answered by fcabanski)

Compute P(x) using the binominal probability formula. Then determine whether the normal... (answered by ewatrrr)

Help please - I have tried to use the Binominal Distribution formula to solve this... (answered by Edwin McCravy)

Use the Hypergeometric formula: a high school committee is to be formed by choosing... (answered by stanbon)

find mean and variance of the hypergeometric... (answered by solver91311)

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

Stats question: An IRS inspector is to select 3 corporations from a list of 15 for tax... (answered by rothauserc)

Machine A can photocopy 1000 pieces of a single file in 5 hours, while Machine B can... (answered by greenestamps,ikleyn)

11) The Information Commons in the main library has 150 personal computers. The... (answered by stanbon)