Probabilidades - 9ºano
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Medium
Inês Moreira
Used 402+ times
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17 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Escolhe a opção em que a probabilidade de obter uma figura é 1/3.
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Um caixa contém fichas numeradas de 1 a 20. Qual é a probabilidade de sair um número par maior que 10?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Uma caixa tem 12 bolas verdes, 6 amarelas e 2 azuis. Qual a probabilidade de sair, ao acaso, uma bola amarela?
6/10
3/10
12/20
2/20
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Uma caixa tem 12 bolas verdes, 6 amarelas e 2 azuis. Qual a probabilidade de, ao retirar uma bola ao acaso, não sair a cor verde?
8/20 =60%
8/20 = 4%
8/20 = 40%
12/20 =60%
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A probabilidade de sair preto é:
4/10
2/10
5/10
6/10
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Numa escola com 1.200 alunos foi realizada uma pesquisa sobre o conhecimento desses em duas línguas estrangeiras: inglês e espanhol. Nessa pesquisa constatou-se que 600 alunos falam inglês, 500 falam espanhol e 300 não falam qualquer um desses idiomas. Escolhendo-se um aluno dessa escola ao acaso e sabendo-se que ele não fala inglês, qual a probabilidade de que esse aluno fale espanhol?
0.5
0.625
0.25
5/6
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual a probabilidade de tirar um ás, ao retirar ao acaso uma carta de um baralho com 52 cartas?
1/13
0.019230769230769232
0.5
0.25
0.09615384615384616
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