But the rate of illness had no correlation with the frequency of chilies eaten, leading to speculation that other factors may be at work.
Historically, the total number of vehicles on the U.S. roads has shown a strong correlation with the total number of houses.
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The Madoff approach had virtually no correlation with the performance of the overall stockmarket.
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The traditional correlation of business profits with demand for fuel efficient, long haul new aircraft means stabilizing bizjet production in the upcoming year.
The key takeaway is that middle class America is disgusted with the financial markets to the point where their expectations, for the first time in decades, have no correlation with the reality of the economic situation.
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The best way to figure out the answer is first to start with the correlation between rumors of QE3 and the price of gold, and subsequently the correlation between the price of gold and actual news of QE3.
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Most substantial, though, is the correlation with the thinking of Yale Computer Science Professor David Gelernter.
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The correlation is with the genes of what is known as the major histocompatibility complex (MHC).
Gold typically has a low correlation with the price of equities, making it a way to hedge against ups and downs in the stock market, says Milling.
Sure enough, Mr Coates finds that cortisol levels in traders' bodies fluctuate in line with market volatility, even displaying a striking correlation with the prices of derivatives.
Much of the second half is taken up with the devilishly tricky business of trying to extract causation from correlation.
There is also a remarkable correlation with the retail sales performance of the brand.
The proliferation of natural gas into the electricity market does nothing to reduce the correlation with heating and cooling requirements.
In financials, where correlation of performance is high for the properties with major weightings, painting with a broad brush works better.
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The only asset class they could find with a positive correlation was gold but the long-term real return of gold has been just 1% a year, barely better than cash.
In a subset of patients with relapsing remitting MS, the most common form of the disease, the correlation coefficient jumped to 0.69, suggesting an even stronger association between the retinal measurement and brain atrophy.
The answer is, of course, no and the reason has to do with the difference between causation and correlation.
The equity market has been the beneficiary of the interdependence it has developed with the artificially overbought bond market and it will be this correlation which will cause the equity market to decline as the bond market declines.
This business has less correlation with the PC business and more closely follows the expansion of data center activity.
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It certainly correlates with the emergence of the web, though whether the correlation reflects causation is unproven.
So, seven of the same nations are on both lists, with an enormous correlation in the top three.
This disposal process should in theory have no correlation with the Special Liquidator valuation and disposal process or indeed the Department of Finance.
We have seen in the past how in a crisis all assets can end up with high level of correlation.
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Small-cap stocks, for instance, have a long-term correlation of 0.72 with large-cap stocks, according to the Ibbotson SBBI 2011 Classic Yearbook.
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According to the University of Wisconsin- Madison, depression among college students has risen, with a correlation to excessive Internet usage.
In a recent paper, Hurst, along with colleague Annamaria Lusardi of Dartmouth, splashed cold water on the purported correlation between wealth and entrepreneurship.
Whether the criminal "underclass" is an identifiable and stable group may be questionable, but BBC analysis of people charged in relation to the disorder in Manchester does suggest a clear correlation with deprivation.
This chart (with 2009 data from OECD) is evidence of at least some correlation between obesity and the amount of time spent eating.
Epstein commissioned a detailed statistical assessment of the correlation between Pentagon technology spending and various potential drivers in 2005, measuring which factors were most intimately linked with the rise and fall of weapons outlays all the way back to 1955.
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