Ethan wakes up one morning with a talking cat on his head. The cat refuses to budge until Ethan wins a game of probability. Without looking, Ethan must pick out a dime from his coin collection or two matching socks from his dresser, or do something else improbable. A very improbable story about a challenging math concept.
給孩子講解概率
评分給孩子講解概率
评分給孩子講解概率
评分給孩子講解概率
评分給孩子講解概率
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