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A base rate fallacy is a common error in logical reasoning where an effect is attributed to an incorrect cause due to incorrect statistical data based on statistical ratios not being taken into account.
Mark knows one person from Meridian High who is boring, so she thinks everyone from that school is boring. (APEX)
To find the base, percentage and rateperce ntage = base * rate (rate in decimal)base = percentage/rate (rate in decimal)rate = percentage/base * 100%Example:Base = 10Percentage = 2Rate?Rate = 2/10 * 100% = 20%
The origin of the word fallacy dates back to 1350-1400. The word fallacy means deceptive or misleading. As a simple example, when one says the world is flat it is a complete fallacy.
Multiply the number by 1+rate. For example - suppose you had a base figure of 12.34, and a rate of 5.5%... Multiply 12.34 by 1.055, and this gives you 13.0187 (The zero is in the rate figure because it is less than 10 percent)