The crossword solution for the term 'MANY A RATIO' is STAT, which stands for Statistical Analysis Tool. STAT is a software program used to analyze data and create statistical models. It is used in many fields, including economics, finance, and engineering. STAT can be used to calculate various ratios, such as correlation coefficients, regression coefficients, and confidence intervals. It can also be used to generate graphical representations of data, such as histograms and scatter plots.