Given the following dataset, what is the first quartile? Round to the nearest tenth if necessary.%0D%0A42, 82, 67, 34, 54, 62, 17, 47, 56, 18, 20(1 point)
To find the first quartile, we first need to arrange the dataset in ascending order:
17, 18, 20, 34, 42, 47, 54, 56, 62, 67, 82
The first quartile (Q1) is the median of the lower half of the dataset. In this case, the lower half of the dataset is {17, 18, 20, 34, 42}. Since there are an odd number of data points in the lower half, the median is the middle value, which is 20.
Therefore, the first quartile of the dataset is 20.