Answer:
0.5
Step-by-step explanation:
Total computers in the shipment = 8
Number of computers with defects = 4
We have to find if the sample size of 1 is drawn from the 8 computers, what is the probability that it will not contain a defective computer.
Drawing a sample size of 1 is equivalent to selecting 1 computer on random. So, in short we have to find the probability of randomly selecting a computer which is not defective.
Since, out of 8 computers, 4 are defective, so, the remaining 4 will be without defects.
Probability is defined as ratio of favorable outcomes to total number of possible outcomes.
Possible outcome here is any of the 8 computers. So number of possible outcomes is 8.
Favorable outcome is selecting the computer without defect. So, number of favorable outcomes = 4
Thus, the probability of selecting a computer without defect = 4/8 = 0.5
