Question

Qul navigati mination 3 Not yet end Moned out of 5.00 Po question Fra ottimot Suppose that when a machine is adjusted properly. 91% of the items produced by it are of high quality and the others are of medium quality Suppose, however, that the machine is improperly adjusted during 125 of the time and that under these conditions 10% of the items produced by it are of high quality and the remaining ore of medium quality. Suppose that one item produced by the machine as selected at rondom. Ind the probability that it is of medium quality The answer should be a number rounded to live decimal places don't use symbols such as Timololf 0.58:37 Previous page Next page Jump to. c

Answer 1

Let A denote the event the item is of medium quality.

Let E1 denote the event that the machine is properly adjusted and E2 denote the event that the machine is improperly adjusted

Required probability = P(item is of medium quality)

= P(A) = P(An E1) + P(An E2) = P(E1)P(AE1)+ P(E2)P(A|E2) = (1 – 0.12)(1 – 0.91) + (0.12)(1 -0.10) 0.18720