Question

In the data set below, what is the lower quartile?
1 5 6 7 9

Answer 1

To find the lower quartile, we need to sort the data set in ascending order:

1 5 6 7 9

Since the data set has an odd number of values, the lower quartile is the median of the lower half of the data set. In this case, the lower half is 1 and 5. The median of these two values is 3.

Therefore, the lower quartile of the given data set is 3.