# Table de khi2

La table donne la probabilité α pour que khi2 égale ou dépasse une valeur donnée, en fonction du nombre de degrés de liberté (d.d.l).

Exemple : avec d.d.l. = 3, pour khi2 = 0.584 la probabilité est α = 0.90.

 d.d.l/α 0.9 0.5 0.3 0.2 0.1 0.05 0.02 0.01 0.001 1 0.016 0.455 1.074 1.642 2.706 3.841 5.412 6.635 10.827 2 0.211 1.386 2.408 3.219 4.605 5.991 7.824 9.21 13.815 3 0.584 2.366 3.665 4.642 6.251 7.815 9.837 11.345 16.266 4 1.064 3.357 4.878 5.989 7.779 9.488 11.668 13.277 18.467 5 1.61 4.351 6.064 7.289 9.236 11.07 13.388 15.086 20.515 6 2.204 5.348 7.231 8.558 10.645 12.592 15.033 16.812 22.457 7 2.833 6.346 8.383 9.803 12.017 14.067 16.622 18.475 24.322 8 3.49 7.344 9.524 11.03 13.362 15.507 18.168 20.09 26.125 9 4.168 8.343 10.656 12.242 14.684 16.919 19.679 21.666 27.877 10 4.865 9.342 11.781 13.442 15.987 18.307 21.161 23.209 29.588 11 5.578 10.341 12.899 14.631 17.275 19.675 22.618 24.725 31.264 12 6.304 11.34 14.011 15.812 18.549 21.026 24.054 26.217 32.909 13 7.042 12.34 15.119 16.985 19.812 22.362 25.472 27.688 34.528 14 7.79 13.339 16.222 18.151 21.064 23.685 26.873 29.141 36.123 15 8.547 14.339 17.322 19.311 22.307 24.996 28.259 30.578 37.697 16 9.312 15.338 18.418 20.465 23.542 26.296 29.633 32 39.252 17 10.085 16.338 19.511 21.615 24.769 27.587 30.995 33.409 40.79 18 10.865 17.338 20.601 22.76 25.989 28.869 32.346 34.805 42.312 19 11.651 18.338 21.689 23.9 27.204 30.144 33.687 36.191 43.82 20 12.443 19.337 22.775 25.038 28.412 31.41 35.02 37.566 45.315 21 13.24 20.337 23.858 26.171 29.615 32.671 36.343 38.932 46.797 22 14.041 21.337 24.939 27.301 30.813 33.924 37.659 40.289 48.268 23 14.848 22.337 26.018 28.429 32.007 35.172 38.968 41.638 49.728 24 15.659 23.337 27.096 29.553 33.196 36.415 40.27 42.98 51.179 25 16.473 24.337 28.172 30.675 34.382 37.652 41.566 44.314 52.62 26 17.292 25.336 29.246 31.795 35.563 38.885 42.856 45.642 54.052 27 18.114 26.336 30.319 32.912 36.741 40.113 44.14 46.963 55.476 28 18.939 27.336 31.391 34.027 37.916 41.337 45.419 48.278 56.893 29 19.768 28.336 32.461 35.139 39.087 42.557 46.693 49.588 58.302 30 20.599 29.336 33.53 36.25 40.256 43.773 47.962 150.892 59.703

D'après Fisher et Yates, Statistical tables for biological, agricultural, and medical research (Oliver and Boyd, Edinburgh) avec l'aimable autorisation des auteurs et des éditeurs