In science, a variable is something that can be changed, measured or controlled in an experiment. Scientists look at variables to understand how they affect things. A variable is any one of the things ...

In the first case, there is a strong upward-sloping relationship between X and Y; in the second case, no apparent relationship; in the third case, a strong downward-sloping relationship. Note the ...

Let $Y_1, \cdots, Y_r$ be independent random variables, each uniformly distributed on $\mathscr{M} = \{1,2, \cdots, M\}$. It is shown that at most $N = 1 + M + \cdots ...

The correspondence by Poeschl et al, entitled, “Perineural Invasion: Correlation With Aggressive Phenotype and Independent Prognostic Variable in Both Colon and Rectum Cancer” (J Clin Oncol ...

Several theorems are stated which are useful in establishing whether a given sequence of averages of independent but not identically distributed random variables does or does not satisfy the weak ...

Mary Hall is a editor for Investopedia's Advisor Insights, in addition to being the editor of several books and doctoral papers. Mary received her bachelor's in English from Kent State University with ...

The correspondence by Poeschl et al, entitled, “Perineural Invasion: Correlation With Aggressive Phenotype and Independent Prognostic Variable in Both Colon and Rectum Cancer” (J Clin Oncol ...