The Sum Chart Bias Tracker or Sum Tracking Chart is a lotto strategy chart in Advantage Gold lottery software (Chart F) and the Lottery Master Guide book. The Sum Tracking Chart helps you determine whether the sum of the six winning numbers in the next game will be higher than average or lower than average. A higher than average predicted sum would mean more higher numbers would be drawn. A lower than average predicted sum would mean more lower numbers would be drawn. See the Most Probable Range of Sums to see the sums for the most common pick-5 and pick-6 lotto games. Find the range of sums for the Lotto game you play, and try to have at least 70 percent of your combinations fall within that range.

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