SOLUTION: a manufacturer of tow chains finds that the average breaking point is at 3,500 pounds and the standard deviation is 250 pounds. if you pull a weight of at least 3000 pounds with th

Algebra ->  Probability-and-statistics -> SOLUTION: a manufacturer of tow chains finds that the average breaking point is at 3,500 pounds and the standard deviation is 250 pounds. if you pull a weight of at least 3000 pounds with th      Log On


   



Question 881103: a manufacturer of tow chains finds that the average breaking point is at 3,500 pounds and the standard deviation is 250 pounds. if you pull a weight of at least 3000 pounds with this tow chain, what percentage of time would you expect the chain to break
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
mean = 3,500 pounds and the standard deviation is 250 pounds.
*Note: z+=+blue%28x+-+mu%29%2Fblue%28sigma%29
P(x ≥ 3000) = 1 - P(z < 2) = 1 - 87.72% = 2.28% of the time would expect the chain to break