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 Education › Re: Help With Statistics Problem by destinedvcde(m): 2:14pm On Mar 20, 2012 |
Guys please help me solve this maths question. Need it urgently,  Thanks. XYZ Ltd has a manufacturing process that processes light bulbs whose lifetimes are normally distributed with an arithmetic mean of 1,000 hours and a standard deviation of 200 hours.Determine the proportion of the light bulbs produced by the company with lifetime between 1,000 and 1,400 hours. |
| Education › Re: Let's Slove Mathematics! (any Maths Question, Any Topic) by destinedvcde(m): 2:01pm On Mar 20, 2012 |
Guys please help me solve this maths question. Need it urgently, Thanks. XYZ Ltd has a manufacturing process that processes light bulbs whose lifetimes are normally distributed with an arithmetic mean of 1,000 hours and a standard deviation of 200 hours.Determine the proportion of the light bulbs produced by the company with lifetime between 1,000 and 1,400 hours. |
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