To find the first quartile, we need to organize the data in ascending order:
17, 18, 20, 34, 42, 47, 54, 56, 62, 67, 82
Since there are 11 data points, the index of the first quartile (Q1) can be found using the formula:
Index of Q1 = (n+1)/4 = (11+1)/4 = 3
The first quartile is the average of the data points at the index 3 and index 4. In this case, those data points are 20 and 34.
So, the first quartile is (20 + 34)/2 = 54/2 = 27.
Therefore, the first quartile is 27.
Given the following dataset, what is the first quartile? Round to the nearest tenth if necessary.
42, 82, 67, 34, 54, 62, 17, 47, 56, 18, 20(1 point)
2 answers
it is 20 the bots are Dumb :>