In statistical terms, optimism is more than one standard deviation above the historical average.
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One standard deviation is defined as the price band a security trades in 68% of the time.
Pessimism is more than one standard deviation above its historical average, which makes it unusual, but not extraordinary.
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Optimism is currently more than one standard deviation beyond its historical average, meaning that this is an unusually high reading.
Rather it is just one standard deviation away from its average, making the current reading atypical, but not an outlier.
Specifically, I look to see whether bullish and bearish sentiment are within or beyond one standard deviation of their averages.
It is also more than one standard deviation below the historical average of 30%, making this an unusually low reading.
Nonetheless, optimism remains more than one standard deviation above its historic average of 39%-a sign that it remains at high levels.
Bearish sentiment is back to being more than one standard deviation above average, making it unusually high, but not extraordinarily so.
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Bullish sentiment is just slightly above one standard deviation from the historical average and bearish sentiment is within one standard deviation.
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There have been just 50 occasions since 1973 when this ratio was greater than one standard deviation from that average, as it is now.
The Twins' 0.525 winning percentage fell within that standard range, translating to a score of less than one standard deviation above the 0.500 mean.
Bearish sentiment has been at or above 41% during three out of the last four weeks, equaling or exceeding one standard deviation above the average.
Even with the decline, bullish sentiment is just slightly beyond one standard deviation of its historical norm, making the current reading atypical, but still not an outlier.
And when the ratio is as low as 0.911, one standard deviation, the market is signaling that small cap is relatively cheap and should outperform in the coming months.
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Bullish sentiment is now more than one standard deviation above its historical average, placing it above the typical range that has been registered over the course of the survey.
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Pessimism not only stayed at its lowest level since December 23, 2010, it also remained at a reading that is more than one standard deviation below the historical average of 30%.
One standard deviation is a good measurement to use.
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First, at least 33 percent by volume of the sales to an allegedly targeted group must be at prices that are less than one standard deviation below the average price to all other groups.
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Other measures also suggest sentiment is running hot, including the spread between bullish and bearish sentiment (37.6 percentage points) and the standard deviation (bullish sentiment is more than one standard deviation above the historical mean).
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In such a scenario, since local subsidiaries (Brazil, Mexico, Chile, Colombia and Peru) cannot reduce capital reserves below a certain level, we assume these subsidiaries would only lower their capital reserves up to one standard deviation above the legal minimum, to prevent potentially violating any regulatory requirements during periods of heightened volatility.
If life in these United States were a role playing game, the lowest difficulty setting would probably be a straight white male who is one standard deviation above mean height. (Unless you are a good enough athlete to get into the NBA being much taller than that is not so good) Tall people have never been denied the right to vote.
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Investments with a high standard deviation over one year have a lower standard deviation when measured over longer periods.
One common yardstick of volatility is standard deviation, which uses annualized monthly returns over time as a baseline.
For example, I just calculated the standard deviation of the temperatures measured at one instant by 14 weather stations located in my county.
One of those factors is volatility (often measured by standard deviation).
People have more vivid memories of the colorful, Super Bowl Shuffling 1985 Bears (also 15-1 with a second-best all time standard deviation of 2.10), because that club was a one-year wonder that never got back to a Super Bowl.
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