Cattle are bred for different purposes, and each breed has different characteristics (size, color, demeanor, etc.). Hereford cattle are usually bred for beef. At birth, Hereford calves have a mean weight of about 78.6 lbs with a standard deviation of 8.1 lbs. Holstein cattle are usually bred for milk. Holstein calves have a mean birth weight of 90 lbs and a standard deviation of 5.8 lbs. Roy, a Hereford calf, weighs 96.6 lbs at birth. Bessy, a Holstein calf, weighs 100.5 lbs at birth. Which of these two calves weighs more relative to their own breed? Question 8 Answer a. Bessy's z-score is higher, so her weight is further above the mean and weighs more relative to her breed. b. The difference between Roy's weight and the mean (21) is greater than the difference between Bessy's weight and the mean (10.5), so Roy weighs more. c. Bessy weighs more than Roy. d. Roy's z-score is higher, so his weight is further above the mean and weighs more relative to his breed. e. We cannot make this comparison because they do not follow the same distribution