Sangeetha Pulapaka
0

First write out the numbers in order: 1, 1, 2, 2, 2, 2, 2, 2, 3, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6

This list can be split up into four equal groups of five:

[image]

So,

Q1 is the mean of 2 and 2 = 2


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