MBA-501-X4331 Math and Stats for Business 18TW4 Olaide Ogunmefun1 6/19/18 6:10 P

Question

MBA-501-X4331 Math and Stats for Business 18TW4 Olaide Ogunmefun1 6/19/18 6:10 PM Homework: 7-1 MyMathLab: Module Seven Homework Save Score: 0 of 2 pts 20 of 20 (20 complete) HW Score: 79.5%, 31.8 of 40 pts Question Help Bus Econ 9.3.3 A shipment of 8 computers contains 4 with defects Find the probability that a sample of size 1, drawn from the 8, will not contain a defective compute What is the probability that a sample of 1 of the 8 computers will not contain a detective computer? Type an integer or a simplified fraction ) Enter your answer in the answer box and then click Check Answer. All parts showing Clear Al Check Answer

Explanation / Answer

Sample of 8 shipment contains 4 defective, means remaining 4 are non-defective items.

1 non-defective computer is selected from 4 non-defective samples by 4C1 ways.

Total number of ways to select 1 computer from 8 computers = 8C1 ways.

P( 1 Non-defective) = 4C1 /  8C1

In general,

nCr = n! / [ ( n-r) ! * r! ]

Therefore,

P( 1 Non-defective) = 4C1 /  8C1

= 4 / 8

= 1/2

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