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a product: cost 0.75 mean 5.5 variance 7 b product: cost 0.10 mean 7.2 variance 3 c product: cost 0.05 mean 2.3 variance 1.5 to get expected cost for the average guest : i know how to solve this one: total of (cost * mean) so it is 4.96. but I do not know how to solve the standard deviation...

so i got a list of em here we go so if i were to get 2 15" woofers at 15000 watts i can run them with a 30000 watts amp what are some good subwoofer and speaker cone material what material distorts the easiest i heard any kind of metal was bad because it distorts it and makes it crackle...

so i want to redo some of the suspension on my 95 civic but i dont know if it have coil overs or if it uses the full size springs.... so which one is it

so i got a list of em here we go so if i were to get 2 15" woofers at 15000 watts i can run them with a 30000 watts amp what are some good subwoofer and speaker cone material what material distorts the easiest i heard any kind of metal was bad because it distorts it and makes it crackle...

i was wondering if i were to make a box in the back of my car for 2x12" subs and 2x8" subs put the 6 neons in place and buy the subs, amps, a battery, some components W/tweeters and a head unit is there a place i could take that all to and have them put in a new alternator, rewire my car and...

i need to know some things about speakers subs and amps i need to to know what ohms are, is 8 better than 4? what it would take to power up 1,000-2,000 watts if i would have to do anything to my alternator or battery? what is a good amp to use? I was thinking alpine but im not sure...

i need to know some things about speakers subs and amps i need to to know what ohms are, is 8 better than 4? what it would take to power up 1,000-2,000 watts if i would have to do anything to my alternator or battery? what is a good amp to use? I was thinking alpine but im not sure...