. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. 36 GENETICS IN RELATION TO AGRICULTURE The significance of the normal curve as an index of variation is based on the conception that the area within the curve represents an indefinite number of individuals and that the constants of the curve indicate the distribution of tliese indivichials with respect to a given character. If in any curve (Fig. 16) the perpendicular erected at M divides the area_of the curve into two equal parts, this line is the median and the point M represents the average or me
. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. 36 GENETICS IN RELATION TO AGRICULTURE The significance of the normal curve as an index of variation is based on the conception that the area within the curve represents an indefinite number of individuals and that the constants of the curve indicate the distribution of tliese indivichials with respect to a given character. If in any curve (Fig. 16) the perpendicular erected at M divides the area_of the curve into two equal parts, this line is the median and the point M represents the average or mean of all the values from which the curve is constructed. The perfect symmetry of the normal curve causes the median to coincide with the mean and the mode; but in actual cases. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Babcock, E. B. (Ernest Brown), b. 1877; Clausen, Roy Elwood, 1891-. New York, McGraw-Hill; [etc. , etc. ]
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