[{"question":"Regresn\u00e9 krivky vyjadruj\u00fa","answers":["kvalitat\u00edvny trend z\u00e1vislosti","kvantitat\u00edvny trend z\u00e1vislosti","mieru sily z\u00e1vislosti dvoch pozorovan\u00fdch znakov","ani jedna odpove\u010f nie je spr\u00e1vna"],"correct":"kvantitat\u00edvny trend z\u00e1vislosti","order":"1"},{"question":"Pri line\u00e1rnej regresii maj\u00fa regresn\u00e9 krivky tvar","answers":["priamok","paraboly","hyperboly","elipsy"],"correct":"priamok","order":"2"},{"question":"V ktorom z uveden\u00fdch pr\u00edkladov bude korel\u00e1cia medzi dvoma pozorovan\u00fdmi znakmi najvy\u0161\u0161ia?","answers":["regresn\u00e9 krivky zvieraj\u00fa uhol 90\u00b0","regresn\u00e9 krivky zvieraj\u00fa uhol 10\u00b0","regresn\u00e9 krivky zvieraj\u00fa uhol 20\u00b0","regresn\u00e9 krivky zvieraj\u00fa uhol 110\u00b0"],"correct":"regresn\u00e9 krivky zvieraj\u00fa uhol 10\u00b0","order":"3"},{"question":"Medzi dan\u00fdmi znakmi neexistuje korel\u00e1cia, ak uhol, ktor\u00fd zvieraj\u00fa regresn\u00e9 krivky je","answers":["0\u00b0","90\u00b0","180\u00b0","110\u00b0"],"correct":"90\u00b0","order":"4"},{"question":"Kedy bude korel\u00e1cia dvoch znakov najmen\u0161ia? Ak uhol, ktor\u00e9 regresn\u00e9 krivky zvieraj\u00fa, bude","answers":["89\u00b0","10\u00b0","20\u00b0","45\u00b0"],"correct":"89\u00b0","order":"5"},{"question":"Ka\u017edej hodnote x odpoved\u00e1 presne vypo\u010d\u00edtan\u00e1 hodnota y, ak regresn\u00e9 krivky zvieraj\u00fa uhol","answers":["10\u00b0","180\u00b0- spl\u00fdvaj\u00fa","90\u00b0","80\u00b0"],"correct":"180\u00b0- spl\u00fdvaj\u00fa","order":"6"},{"question":"Pri ur\u010dovan\u00ed parametrov regresnej priamky pou\u017e\u00edvame met\u00f3du","answers":["rovnak\u00fdch \u0161tvorcov","najv\u00e4\u010d\u0161\u00edch \u0161tvorcov","najmen\u0161\u00edch \u0161tvorcov","zhodn\u00fdch \u0161tvorcov"],"correct":"najmen\u0161\u00edch \u0161tvorcov","order":"7"},{"question":"V\u00fdber nepravdiv\u00e9 tvrdenie","answers":["ak korela\u010dn\u00fd koeficient = 0, znaky s\u00fa v\u017edy nez\u00e1visl\u00e9","ak s\u00fa znaky nez\u00e1visl\u00e9, korela\u010dn\u00fd koeficient je rovn\u00fd 0","s istotou nevieme poveda\u0165 ni\u010d o tom, \u010do je mimo pozorovan\u00e9ho intervalu","ak znaky nie s\u00fa line\u00e1rne z\u00e1visl\u00e9, neznamen\u00e1 to, \u017ee s\u00fa nez\u00e1visl\u00e9"],"correct":"ak korela\u010dn\u00fd koeficient = 0, znaky s\u00fa v\u017edy nez\u00e1visl\u00e9","order":"8"},{"question":"Na vypo\u010d\u00edtanie koeficientu a a b v rovnici regresie m\u00f4\u017eeme v Excely pou\u017ei\u0165 preddefinovan\u00fa funkciu:","answers":["CORREL","LOGEST","KURT","LINEST"],"correct":"LINEST","order":"9"},{"question":"Ak R2 = 0,05, index korel\u00e1cie =","answers":["0,125","1","0,25","0,224"],"correct":"0,224","order":"10"}]