What type of tolerance uses a table on the drawing and is based on number of decimal places?

What type of tolerance allows equal variation, both larger and smaller, than the specified dimension?

What type of tolerance states both the upper limit and lower limit, without needing to calculate them?

What type of tolerance is shown here? $2.50\ \pm0.02$  

What type of tolerance is assumed when none is stated?

What type of tolerance is circled in this drawing?