For a x -curve with 20 degrees of freedom, find X0.975 . Click the icon to view a x-table. -X Table of critical values The x -value is. (Round to three decimal places as needed.) Values of Xa df Xo.995 X6.90 Xo.975 Xo.95 Xo.90 Xo. 10 Xo.05 Xo.025 Xo. 0.000 0.000 0.001 0.004 0.016 2.706 3.841 5.024 6.1 0.010 0.020 0.051 0.103 0.211 4.605 5.991 7.378 9.1 0.072 0.115 0.216 0.352 0.584 6.251 7.815 9.348 11.1 0.207 0.297 0.484 0.711 1.064 7.779 9.488 11.143 13.. 0.412 0.554 0.831 1.145 1.610 9.236 11.070 12.833 15.( 0.676 0.872 1.237 1.635 2.204 10.645 12.592 14.449 16.1