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. Would either calf's weight be considered unusually low or high? Question 2 Answer a. Neither calf has a weight that is unusual. b. Both calves weigh above average, so both are unusually high. c. Roy's z-score is beyond 2, so his weight is unusually high. d. Bessy's weight is lower, and is considered unusually low. e. Both calves have z-scores above 2, so both are unusually high