Before the new semester begins, Harry received a letter from Hogwarts, which said the platform of the train station would temporarily change due to the road maintenance in King's Cross. The number of the new platform is enclosed in a question, only those who can successfully find the Magic Quantile using what they learned from Data Magic Course can get the ticket for the new semester.
Harry's letter begins with a series of numbers:
4, 4, 6, 8, 10, 11, 11, 11, 15, 15, 16, 16
To find The Magic Quantile, given a sequence of numbers, the platform where we can get on the train to Hogwarts is the Q3 value of the data. (Make sure to calculate the best possible approximation of Q3 if it is not an exact number.)
