If a probability is computed using only totals in the margins from the table (the far right column, or the bottom row in the above table), it is called a marginal probability. In this fraction, the nu...If a probability is computed using only totals in the margins from the table (the far right column, or the bottom row in the above table), it is called a marginal probability. In this fraction, the numerator (top of the fraction) is a row or column total from the margins of the table, and the denominator (bottom of the fraction) is the grand total (found in the lower right cell in the table above).
