Not sure how to find the answers.

For a 1' distribution with 19 degrees of freedom, find the area, or probability, in each region. (Round your answers to three decimal places.) (a) to the right of 2.539 (b) to the left of 2.093 (c) to the left of 1.328 (d) to the right of 1.729 (e) between 2.539 and 2.539 (f) between 1.328 and 1.328