Use the following cell phone airport data speeds (Mbps) from a particular network. Find Upper Q 1Q1. 0.10.1 0.10.1 0.20.2 0.20.2 0.30.3 0.40.4 0.40.4 0.50.5 0.50.5 0.50.5 0.70.7 0.80.8 0.90.9 0.90.9 0.90.9 1.11.1 1.31.3 1.51.5 1.51.5 1.81.8 2.12.1 2.12.1 2.12.1 2.42.4 2.82.8 3.23.2 3.33.3 3.63.6 3.73.7 3.93.9 4.24.2 5.85.8 7.67.6 8.68.6 8.88.8 9.39.3 10.510.5 11.411.4 12.212.2 12.312.3 12.312.3 12.312.3 13.313.3 13.813.8 14.414.4 14.714.7 15.215.2 15.415.4 15.515.5 25.225.2
To find 1st quartile we first have to arrange the data in ascending order.
0.1, 0.1, 0.2, 0.2, 0.3, 0.4, 0.4, 0.5, 0.5, 0.5, 0.7, 0.8, 0.9, 0.9, 0.9, 1.1, 1.3, 1.5, 1.5, 1.8, 2.1, 2.1, 2.1, 2.4, 2.8, 3.2, 3.3, 3.6, 3.7, 3.9, 4.2, 5.8, 7.6, 8.6, 8.8, 9.3, 10.5, 11.4, 12.2, 12.3, 12.3, 12.3, 13.3, 13.8, 14.4, 14.7, 15.2, 15.4, 15.5, 25.2
The total number of values are: n = 50.
Now, as n is even, average of (n/2)th and (n/2 +1)th number will give the median
The Q1 is given by (n/4+1/2)th number i.e.,
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