According to the distributor of a kind of trading card, 66% of the cards are common, 25% are uncommon, and 9% are rare. Avery wondered if the rarity levels of the cards she and her friends owned followed this distribution, so she took a random sample of 500 cards and recorded their rarity levels.
What type of statical test used in this case?
A. A z-test for a proportion
B. A χ2 goodness of fit test
C. A χ2 test for homogeneity
D. A χ2 test of independence
E. A two-sample z-test for a proportion
