Step 1 :Identify the lower class limits. The lower class limits are the smallest numbers in each class or group. In this case, they are the first numbers in each range in the first column of the table.
Step 2 :The lower class limits are \(0, 100, 200, 300, 400, 500, 600\) (in 1000 cells/ \(\mu \mathrm{L}\) ).
Step 3 :Final Answer: The lower class limits are \(\boxed{0, 100, 200, 300, 400, 500, 600}\) (in 1000 cells/ \(\mu \mathrm{L}\) ).