Eksempel 81 side 140 i B2 (bestemmelse af sandsynligheder i LUklbXJvd0c2Iy9JK21vZHVsZW5hbWVHNiJJLFR5cGVzZXR0aW5nR0koX3N5c2xpYkdGJzYmLUklbXN1cEdGJDYlLUkjbWlHRiQ2JlEnJiM5Njc7RicvJSdpdGFsaWNHUSZmYWxzZUYnLyUsbWF0aHZhcmlhbnRHUSVib2xkRicvJStmb250d2VpZ2h0R0Y3LUYjNiYtSSNtbkdGJDYlUSIyRidGNUY4L0YzUSV0cnVlRicvRjZRLGJvbGQtaXRhbGljRidGOC8lMXN1cGVyc2NyaXB0c2hpZnRHUSIwRicvJSVzaXplR1EjMTJGJ0Y1Rjg=-fordelingen)
LUklbXJvd0c2Iy9JK21vZHVsZW5hbWVHNiJJLFR5cGVzZXR0aW5nR0koX3N5c2xpYkdGJzYjLUkjbWlHRiQ2JVEocmVzdGFydEYnLyUnaXRhbGljR1EldHJ1ZUYnLyUsbWF0aHZhcmlhbnRHUSdpdGFsaWNGJw==
QyQtSSV3aXRoRzYiNiNJJEd5bUdGJSEiIg==
LUklbXJvd0c2Iy9JK21vZHVsZW5hbWVHNiJJLFR5cGVzZXR0aW5nR0koX3N5c2xpYkdGJzYnLUklbXN1cEdGJDYlLUkjbWlHRiQ2J1EnJiM5Njc7RicvJSVib2xkR1EldHJ1ZUYnLyUnaXRhbGljR1EmZmFsc2VGJy8lLG1hdGh2YXJpYW50R1ElYm9sZEYnLyUrZm9udHdlaWdodEdGOi1GIzYnLUkjbW5HRiQ2JlEiMkYnRjJGOEY7RjIvRjZGNC9GOVEsYm9sZC1pdGFsaWNGJ0Y7LyUxc3VwZXJzY3JpcHRzaGlmdEdRIjBGJy1GLzYjUSFGJ0YyRjhGOw==-fordelingen
Antal frihedsgrader = df = 2