What is the median of the dataset 1, 2, 3, 4, 5?

To find the median of a dataset, you need to arrange the numbers in ascending order and then identify the middle value. The dataset provided is already in order: 1, 2, 3, 4, 5.

Since there is an odd number of values in this dataset (five numbers), the median is simply the middle number. In this case, the third number is 3.

This middle value represents the point at which half of the numbers in the dataset are lower, and half are higher, making it the median.

In datasets with an even number of values, the median is calculated by taking the average of the two middle numbers, but that scenario does not apply here, as there are five values. Hence, the correct answer is 3.