To find the first quartile, first arrange the dataset in ascending order:
17, 18, 20, 34, 42, 47, 54, 56, 62, 67, 82
Since there are 11 numbers in the dataset, the first quartile will be the average of the 3rd and 4th numbers when the dataset is split into two halves. In this case, the 3rd and 4th numbers are 20 and 34.
Therefore, the first quartile is (20 + 34) / 2 = 27.0
So, the first quartile is 27.0.
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)
1 answer