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Two owners of a cattle ranch, jose and valeria, want to find the average weight for the ranch’s 200 cows. Instead of weighing all of the cows: jose weighs 25 cows and gets an average weight of 1,350 lb. Valeria weighs 100 cows and gets an average weight of 1,420 lb. What is jose’s margin of error rounded to the nearest whole number?

Sagot :