Quiz — 697ee298ec422_Révision Dc n°2.pdf

Question 1 sur 10 20:00

[{"id":75090,"question":"Quelle est la formule de la fonction linéaire ?","option_a":"f(x) = ax + b","option_b":"f(x) = ax","option_c":"f(x) = a\/x","option_d":"f(x) = a²x","option_e":"","option_f":"","bonne_reponse":"b","explication":"La fonction linéaire s'écrit sous la forme f(x) = ax, où a est le coefficient directeur.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"f(x) = ax + b\", \"b\": \"f(x) = ax\", \"c\": \"f(x) = a\/x\", \"d\": \"f(x) =","_debug_options_count":4},{"id":75091,"question":"Dans une série statistique, la médiane est toujours égale à la moyenne.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"La médiane et la moyenne sont deux indicateurs différents. La médiane est la valeur centrale, tandis que la moyenne est la somme des valeurs divisée par le nombre total.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":75092,"question":"Quelle est l'équation d'une droite parallèle à l'axe des abscisses ?","option_a":"y = ax + b","option_b":"y = b","option_c":"x = a","option_d":"y = x + a","option_e":"","option_f":"","bonne_reponse":"b","explication":"Une droite parallèle à l'axe des abscisses a une équation de la forme y = b, où b est une constante.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"y = ax + b\", \"b\": \"y = b\", \"c\": \"x = a\", \"d\": \"y = x + a\"}}","_debug_options_count":4},{"id":75093,"question":"Si deux droites sont perpendiculaires, le produit de leurs coefficients directeurs est égal à :","option_a":"0","option_b":"1","option_c":"-1","option_d":"2","option_e":"","option_f":"","bonne_reponse":"c","explication":"Si deux droites sont perpendiculaires, le produit de leurs coefficients directeurs est égal à -1.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"0\", \"b\": \"1\", \"c\": \"-1\", \"d\": \"2\"}}","_debug_options_count":4},{"id":75094,"question":"La probabilité d'un événement impossible est égale à :","option_a":"0","option_b":"0.5","option_c":"1","option_d":"2","option_e":"","option_f":"","bonne_reponse":"a","explication":"La probabilité d'un événement impossible est toujours égale à 0.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"0\", \"b\": \"0.5\", \"c\": \"1\", \"d\": \"2\"}}","_debug_options_count":4},{"id":75095,"question":"Quelle est la formule de l'aire d'un triangle ?","option_a":"base × hauteur","option_b":"base × hauteur \/ 2","option_c":"côté × côté","option_d":"π × rayon²","option_e":"","option_f":"","bonne_reponse":"b","explication":"L'aire d'un triangle se calcule avec la formule (base × hauteur) \/ 2.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"base × hauteur\", \"b\": \"base × hauteur \/ 2\", \"c\": \"côté × cô","_debug_options_count":4},{"id":75096,"question":"Dans un repère orthonormé, la distance entre deux points A(x₁, y₁) et B(x₂, y₂) est donnée par :","option_a":"√((x₂ - x₁)² + (y₂ - y₁)²)","option_b":"(x₂ - x₁) + (y₂ - y₁)","option_c":"|x₂ - x₁| + |y₂ - y₁|","option_d":"max(|x₂ - x₁|, |y₂ - y₁|)","option_e":"","option_f":"","bonne_reponse":"a","explication":"La distance entre deux points dans un repère orthonormé est donnée par la formule √((x₂ - x₁)² + (y₂ - y₁)²).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"√((x₂ - x₁)² + (y₂ - y₁)²)\", \"b\": \"(x₂ - x₁) + (y","_debug_options_count":4},{"id":75097,"question":"Une inéquation du type ax + b \u003E 0 a pour solution l'ensemble des réels x tels que :","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"La solution d'une inéquation dépend du signe de a. Si a \u003E 0, la solution est x \u003E -b\/a. Si a \u003C 0, la solution est x \u003C -b\/a.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":75098,"question":"Quelle est la formule de la probabilité conditionnelle P(A|B) ?","option_a":"P(A ∩ B) \/ P(B)","option_b":"P(A) + P(B)","option_c":"P(A) × P(B)","option_d":"P(A) - P(B)","option_e":"","option_f":"","bonne_reponse":"a","explication":"La probabilité conditionnelle P(A|B) se calcule avec la formule P(A ∩ B) \/ P(B).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"P(A ∩ B) \/ P(B)\", \"b\": \"P(A) + P(B)\", \"c\": \"P(A) × P(B)\", \"d\":","_debug_options_count":4},{"id":75099,"question":"Le volume d'une pyramide est donné par la formule :","option_a":"Aire de la base × hauteur","option_b":"Aire de la base × hauteur \/ 3","option_c":"π × rayon² × hauteur","option_d":"4\/3 × π × rayon³","option_e":"","option_f":"","bonne_reponse":"b","explication":"Le volume d'une pyramide se calcule avec la formule (Aire de la base × hauteur) \/ 3.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Aire de la base × hauteur\", \"b\": \"Aire de la base × hauteur \/ 3","_debug_options_count":4}]