Find the range of the following data set: {4, 7, 9, 2, 6, 5, 8, 3}.

Step 1 ：Step 1: Order the data set in ascending order, which gives: \( {2, 3, 4, 5, 6, 7, 8, 9}\).

Step 2 ：Step 2: Identify the smallest and largest numbers in the data set. Here they are \(2\) and \(9\) respectively.

Step 3 ：Step 3: Subtract the smallest number from the largest number to find the range. The calculation is \(9 - 2\).