
Quiz de Probabilidade e Eventos
Mathematics
11th Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Considere dois eventos <katex latex="A"></katex> e <katex latex="B"></katex> em um espaço amostral, com <katex latex="P(A) = 0,4"></katex>, <katex latex="P(B) = 0,5"></katex> e <katex latex="P(A \cap B) = 0,2"></katex>. Qual é a probabilidade condicional de <katex latex="A"></katex> dado <katex latex="B"></katex>, ou seja, <katex latex="P(A|B)"></katex>?
<katex latex="0,1"></katex>
<katex latex="0,2"></katex>
<katex latex="0,4"></katex>
<katex latex="0,5"></katex>
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se <katex latex="P(A) = 0,3"></katex>, <katex latex="P(B) = 0,6"></katex> e <katex latex="P(A \cap B) = 0,18"></katex>, os eventos <katex latex="A"></katex> e <katex latex="B"></katex> são:
Independentes
Mutuamente exclusivos
Dependentes
Impossíveis
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Em um diagrama de Venn com dois conjuntos <katex latex="A"></katex> e <katex latex="B"></katex>, a região <katex latex="A \cup B"></katex> representa:
Apenas os elementos que pertencem a <katex latex="A"></katex>
Apenas os elementos que pertencem a <katex latex="B"></katex>
Os elementos que pertencem a <katex latex="A"></katex> ou <katex latex="B"></katex> ou ambos
Os elementos que pertencem a ambos <katex latex="A"></katex> e <katex latex="B"></katex>
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se <katex latex="P(A) = 0,7"></katex> e <katex latex="P(B) = 0,5"></katex>, e <katex latex="A"></katex> e <katex latex="B"></katex> são mutuamente exclusivos, qual é <katex latex="P(A \cup B)"></katex>?
<katex latex="0,2"></katex>
<katex latex="0,7"></katex>
<katex latex="0,5"></katex>
<katex latex="1,2"></katex>
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Em um experimento, a probabilidade de ocorrer o evento <katex latex="A"></katex> é <katex latex="0,4"></katex> e a de ocorrer <katex latex="B"></katex> é <katex latex="0,3"></katex>. Se <katex latex="A"></katex> e <katex latex="B"></katex> são independentes, qual é a probabilidade de ambos ocorrerem simultaneamente?
<katex latex="0,12"></katex>
<katex latex="0,7"></katex>
<katex latex="0,1"></katex>
<katex latex="0,4"></katex>
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
No diagrama de Venn, a interseção entre os conjuntos <katex latex="A"></katex> e <katex latex="B"></katex> é representada por:
<katex latex="A \cup B"></katex>
<katex latex="A \cap B"></katex>
<katex latex="A - B"></katex>
<katex latex="B - A"></katex>
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se <katex latex="P(A) = 0,5"></katex>, <katex latex="P(B) = 0,4"></katex> e <katex latex="P(A \cap B) = 0,1"></katex>, qual é a probabilidade de ocorrer pelo menos um dos eventos (<katex latex="A"></katex> ou <katex latex="B"></katex>)?
<katex latex="0,9"></katex>
<katex latex="0,8"></katex>
<katex latex="0,7"></katex>
<katex latex="0,6"></katex>
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