He went out, selected 10 cats at random in Boise and 10 cats at random in Pocatello, He found that the cats in Boise weighed on average 10 lb (SD = 2.1 lb), cats in Pocatello weighed 8 lb (SD = 1.8 lb). Cats in Boise differ than pocatello cats weight
Standard Deviation we have a "standard"
way of knowing what is normal, and what is extra large or extra
small. here SD of Cats in Boise is greater than SD of cats in Pocatello. So we can conclude that Cats in Boise are heavier than cats in Pacatello.
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