Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
The accuracy of an automatic pitching machine is based on the off-line distance that a pitch is from a target at a distance of 30m. ?
The off-line distance is distributed normally with a mean of 0.0m and a standard deviation of 0.05m.
A machine will not meet safety standards and will be rejected if its off-line distance is greater than 0.15m. Determine what percentage of machines will be rejected.
1 Answer
- The GnosticLv 71 week ago
.15m is three times the standard deviation.
A machine will meet safety standards if its off-line distance is within three standard deviations. The Empirical Rule gives that a probability of 99.7%. Thus, the probability that a machine will be rejected is 0.3%.
