Based on this analysis, there is not a clear correlation between sequence similarity and variability.

Still, many doctors say this is not quite enough evidence to draw a clear correlation for all women.

Recent work makes us much less confident that any such clear correlation is possible.

"There's a clear correlation: you raise your cigarette taxes, fewer children go and smoke."

Moreover, officials say, there is a clearer correlation between test results and family income than race.

Last year, Home Office research showed a clear correlation between recession and levels of property crime.

"Research shows a clear correlation between parents' help at home and student achievement."

I see a clear correlation between immigration and my unemployment.

It has long been known in education circles that a clear correlation exists between social class background and examination success.

We know that there is a very clear correlation between the human rights situation and the number of migrants or asylum seekers.