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Concrete · 08-14-2008, 12:48 AM

I have been putting off the standard deviation calculations
I have a lot of excuses as to why - but really it was just putting it off

There are a lot of ways to do this
- especially since my out bound and return routes are similar but not identical paths

lets do it the easy way

all wheel cover data = ave 29.3 mpg - std dev .63
all without covers data = ave 28.0 mpg - std dev .27

Darin - thanks for the reminder that spreadsheets do std Dev calcs

other wise I would still be putting this off

08-14-2008, 12:48 AM	#19 (permalink)
Concrete Sequential Join Date: Jun 2008 Location: Kansas Posts: 177 The Truck - '00 Chevy S10 Extended Cab 90 day: 22.47 mpg (US) Thanks: 0 Thanked 22 Times in 7 Posts	Standard Deviation Calculations I have been putting off the standard deviation calculations I have a lot of excuses as to why - but really it was just putting it off There are a lot of ways to do this - especially since my out bound and return routes are similar but not identical paths lets do it the easy way all wheel cover data = ave 29.3 mpg - std dev .63 all without covers data = ave 28.0 mpg - std dev .27 Darin - thanks for the reminder that spreadsheets do std Dev calcs other wise I would still be putting this off __________________ Concrete Start where you are - Use what you have - Do what you can.