Tuesday, May 17, 2011

21-day moving averages

21-day moving averages

Bollinger Bands
The procedure to create such a pattern is clear. First, calculate and plot the desired average. Then calculate the upper band by multiplying the average of 1 percent plus defense (1 + 0.04 = 1.04). Next, calculate the lower band by multiplying the average of the difference between 1 percent and defense (1-.04 = 0.96). Finally, plot the two groups. The DJIA, the two most popular on average for 20 - and 21-day moving averages and percentages are popular in the 3.5 to 4.0 range.

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