Sentences with phrase «especially weak correlation»

Mid-term products like VMAX are less susceptible to massive decay from contango relative to short - term products, but at the cost of especially weak correlation to the VIX.

Not exact matches

BTW I think the L&G Global fund actually tracks an «ex-UK» index, so that may risk too much on the correlation with non-UK bonds (especially if we continue to import inflation with a weak currency... don't go there).

While these are also noted as statistically significant, using the table below one can determine that statistical significance does not necessarily mean that such «very weak» to «weak» correlations are of much practical significance, especially if and when high - stakes decisions about teachers and their effects are to be attached to such evidence.

This position is most prominently espoused by Jay Greene, the head of the Department of Education Reform at the University of Arkansas, who has argued the evidence for a correlation between test scores and life prospects is weak, especially with regards to high - stakes testing.

Even if a correlation is «statistically significant,» it is possible that the correlation is the result of bias, and that the relationship is so weak that it is not meaningful in practice, especially when the goal is to make high - stakes decisions about individual teachers.

Large changes in cosmic rays are documented in response to magnetic - field variations (the Laschamp event of about 40,000 years ago is especially prominent) with no corresponding change in climate, so any cosmic - ray influence on the climate must be very small (a weak correlation can be obscured by noise; a strong control is almost always visible «by eye,» and clearly is absent).