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Angel_Kitty12
 one year ago
Can someone please help me?
The Normal Distribution (Algebra 2)
LIGHT BULBS: The time that a certain brand of light bulb last before burning out is normally distributed. About 2.5% of the bulbs last longer than 6800 hours and about 16% of the bulbs last longer than 6500 hours. How long does the average bulb last?
Angel_Kitty12
 one year ago
Can someone please help me? The Normal Distribution (Algebra 2) LIGHT BULBS: The time that a certain brand of light bulb last before burning out is normally distributed. About 2.5% of the bulbs last longer than 6800 hours and about 16% of the bulbs last longer than 6500 hours. How long does the average bulb last?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0lol ok thats says that your 2nd standard deviation starts at 6800 and 1st starts at 6500

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0your mean would be 6200

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0do you understand why??

Angel_Kitty12
 one year ago
Best ResponseYou've already chosen the best response.0@Musicdude Really sorry my phone was acting up are you still willing to help me?

Angel_Kitty12
 one year ago
Best ResponseYou've already chosen the best response.0Okay thanks so much and yea I got the mean of 6200 but that can't be the answer is it?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yea it is because the average is the mean

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so an average lightbulb would last 6200 hours

Angel_Kitty12
 one year ago
Best ResponseYou've already chosen the best response.0Wow really..Cause usually it's a whole bunch of other steps...oh wow. God thanks so much :)
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