But Statistics for Education found a positive correlation of 0.12 between books and good results.
Even the Yale-like portfolio had a correlation of more than 0.9 (where 1 is a perfect fit).
Investment results in 2008 showed clearly that correlation of asset classes varied unpredictably and with no warning.
If they always move in opposite directions, they have a correlation of -1.
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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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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Fortunately, a happy correlation of forces kept the Transies at bay temporarily.
The traditional correlation of business profits with demand for fuel efficient, long haul new aircraft means stabilizing bizjet production in the upcoming year.
Rather, their task is to determine the risks imposed on the system as a whole if common exposures significantly increase the correlation of returns across institutions.
The toxic correlation of sovereign and bank borrowing rates implies that the rise in government financing costs will be felt in terms of higher bank lending rates.
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But GMI's data were put to the test in an October 2009 study that measured the correlation of GMI's rankings to stock performance from mid-2003 to mid-2008.
But although their article documents a correlation of privatisation and mortality at the country level, it provides no evidence for their theory that privatisation causes job loss.
In other words, using even the simplest strategy to bifurcate the market meant you still had a correlation of 90% regardless of whether you owned value or growth.
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Furthermore a correlation of hydrochemical parameters, such as fluoride concentrations and total dissolved solid contents, with main tectonic structures within the basins was carried out for the whole aquifer system.
But, as a sign of what may lie ahead, Mr Solnik has spotted an increase in the correlation of stockmarkets within regions, notably Asia and continental Europe, since the 1960s.
If two stockmarket indices always move linearly in the same direction at the same time, and the relative size of their movements is always the same, they have a perfect correlation of 1.
If we remove Venezuela as an extreme case, and we make a statistical correlation of all the other countries in Latin America, this preliminary data set shows a very low correlation between personal and economic freedom.
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The analysts noted that while the YTD gains at this point in 2013 and 1987 are similar, the actual correlation between these two years is just 0.76, which is only the 20th highest correlation of all years since 1928.
But Mr Montier points out that the correlation of returns from different hedge-fund styles (which invest in a wide range of assets, from corporate bonds through to equities) has risen from around 0.3 in 1993 to 0.8 in 2009.
The bottom line: The resumption of easy money policy by the Federal Reserve in the aftermath of the 2008 financial crisis has re-affirmed and broadened the positive correlation of different asset categories, undermining the effectiveness of asset diversification strategy in reducing market risk.
This means that the data which shows a negative correlation between stock performance and GDP, has less data in it, and its negative correlation is only roughly 24%, while the analysis which shows a positive correlation between stock returns and GDP has a correlation of 66%.
The test chip will enable the correlation of the simulation models to the FinFET process and contains test structures, standard cells, a PLL and embedded SRAMs. The memory instances include high-density SRAMs designed to operate at very low voltages and high-speed SRAMs to validate the process performance.
The process of doing so is not as straightforward as it sounds, because something might simultaneously explain both air-traffic and growth, and so it is necessary to go through a complicated econometric procedure to purge any correlation of air traffic and growth of variables that might explain both.
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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In spite of dramatic differences in the rates of the four cancers by race and sex, as well as dramatic changes over the 35-year time period, there was little evidence of a correlation between prevalence of mentholated cigarette use and cancer rates.
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According to the Ibbotson SBBI 2011 Yearbook, long-term Treasuries have a correlation coefficient of 0.11 to large-cap stocks.
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Experimenters found a correlation coefficient of 0.46, after accounting for age differences.
However, intermediate-term Treasuries have a correlation coefficient of 0.08.
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Correlation, of course, does not equal causation - and, so far at least, there is no reason to suggest that American football causes investors to feel suddenly more bullish in a given year.
The TM2792 comes with LG's CINEMA 3D technology offering an unmatched level of comfort with lightweight, battery-free glasses that are also certified flicker-free ? further reducing strain on the eyes. 3D Sound Zooming enhances the 3D experience by simulating the movement of sound in correlation to the movement of images on the screen.
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