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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 408 Weeks Ago, 4 Days Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
1- The signs on an elevator states “Maximum Capacity 1,140 Kilogram” or 16 persons”. If the mean weight is 75 kilos and the standard deviation of the weight is 10 kilos,
• What is the probability that a sample of 16 persons would weigh more than 1140 kilos.
2- A factory’s worker productivity is normally distributed. One worker (worker 1) pro- duces an average of 75 units per day with a standard deviation of 20. Another worker (worker 2) produces at an average rate of 65 per day with a standard deviation of 21. What is the probability that during one week (5 working days) worker 1 will produce more than worker 2?
3- The long-distance calls made by the employees ofa company are normally distributed with a mean of6.3 minutes and a standard deviation of 2.2 minutes.
How long do the longest 10% of calls last
4- A certain type of tomato seed germinates 90% of the time. A backyard farmer planted 25 seeds.
a. What is the probability that exactly 20 germinate?
b. What is the probability that 20 or more germinate?
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