OK, by popular demand, here it is:myleaf wrote:This data is very interesting. It would be nice to see the data from the Leafs that lost two bars, plotted for the interval between the loss of the first and second bar. My limited data shows a 3%/month capacity loss and I believe I am about to lose my 2nd bar.
Second bar lost in 40-75 days after first bar lost. Mean time - 52.7 days, std dev - 9.7 days
Second bar lost in 800-3800 miles after first bar lost. Mean number of miles - 2095, std dev. - 864
Capacity loss per month ranged from 2.5% - 4.7%. Mean capacity loss per month - 3.7%, std dev. 0.6%
Miles/month vs. Capacity loss/month - correlation coefficient 0.10
Miles vs. Capacity loss/month - correlation coefficient 0.39 (I am not posting a graph because the correlation is in the wrong direction--the fewer miles you drive, the faster you lose capacity). This doesn't make sense, and the correlation coefficient is probably too low to consider there is much correlation.