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Tellin_Fibs

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Tellin_Fibs

Re: None

Friday, 01/30/2015 4:24:56 AM

Friday, January 30, 2015 4:24:56 AM

Post# of 2804248
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Bollinger Bands consist of a middle band with two outer bands. The middle band is a simple moving average that is usually set at 20 periods. A simple moving average is used because the standard deviation formula also uses a simple moving average. The look-back period for the standard deviation is the same as for the simple moving average. The outer bands are usually set 2 standard deviations above and below the middle band.
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