The bottom line is, in the racing world, a âniceâ horse is not as important as a âwinningâ horse. Below: Mountain Horses must be certified for both gait and temperment before breeding, to ensure the best traits get passed on to the next generation.
Exceptions to these generalisations happen in the cases of XX males or XY females, or other syndromes. This system is in contrast with the ZW sex-determination system found in birds, some insects, many reptiles, and other animals, in which the heterogametic sex is female.
Then you square all the x-values and add them up. Sxx = (Sum of squares of x values) -[ n *(mean of x)Â² ] (n= number of data points) 2) Then you calculate Syy. This is similar because Syy = (Sum of squares of y values) - [n * (mean of y)Â² ] 3) Now you calculate Sxy.