Statistical Problems
1. Given this herd, what is the mean, variance, and standard deviation?
2. Given the variance of the milk yield for the herd of dairy cows is 640,000 pounds, the covariance is -256, and the variance for butter fat is .16, what is the: a.) standard deviation of the milk yield? b.) standard deviation for butter fat? c.) correlation of the two traits? d.) regression for butterfat given milk yield? e.) regression equation if the average butterfat count is 3.4 and the milk yield is 14000? f.) butterfat for a cow that produces 13,000 pounds of milk?
3. If the heritability for a sow's litter size number is .2, and her litter average is 9, what is the breeding value for that sow?
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USA · USDA · NRPSP8 · Program to Accelerate Animal Genomics Applications.
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