The executive order says “gold-standard science” is: reproducible, transparent, falsifiable, subject to unbiased peer review, clear about uncertainty, skeptical, interdisciplinary, accepting ...

What Is a Three Sigma Limit? A three sigma limit is a statistical calculation in which the data are within three standard deviations from a mean. According to the empirical rule, that's 99.7% of ...

Variance is a measurement of the spread between numbers in a data set. Investors use the variance equation to evaluate a portfolio’s asset allocation.

Mean and standard deviation are frequently used measures of central tendency and variability in data from scale variables. If data are not normally distributed, some researchers prefer reporting ...

The actual working environment of radar is complex, including many interferences and non-homogeneous clutter, which seriously degrade the detection performance of radar. This paper proposes an ...

Iran insists its program is peaceful while still enriching uranium to near weapons-grade levels. Israel sees a nuclear-armed Iran as an existential threat and had long aspired to breaking up Iran’s ...