求大神翻译下成英文,谢谢了!

The second comes from statistical analysis tools - correlation.Statistical correlation is commonly used in economics an analytical tool.Relevance refers to when there is a link between the two factors,when a typical performance are:a variable with another variable changes.Correlation will be divided into positive and negative two cases.I used the book to illustrate the author's case,it will get cold snow outside,which is a positive correlation.The sun will not rain,it is negative..Such as their own Blog updated daily will improve their rankings?If,after statistics showed that ranked on the list of most Blogger Blogger update frequency is once a day,it seems that we can say that conclusion is true.But on the contrary,Blogger ranking factors affecting far more than an update frequency,data only to illustrate the above assumptions and Blogger ranked update frequency there is a positive correlation.