Exercícios de treinamento - "Médias"
Quiz
•
Mathematics
•
12th Grade
•
Practice Problem
•
Medium
Pedro Alves
Used 2+ times
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11 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
A média aritmética é a mais vista em nosso cotidiano. Devemos utilizá-la quando desejamos redistribuir os valores de modo que:
O produto dos valores se preserve
Os valores fiquem todos diferentes
A soma dos inversos se preserve
A soma dos valores se preserve
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
A média geométrica deve ser utilizada quando:
Quer se preservar a soma dos valores
Quer se preservar o produto dos valores
Os valores são grandezas inversamente proporcionais
Todos os valores são frações
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
A média harmônica deve ser utilizada quando:
Quer se preservar a soma dos valores
Quer se preservar o produto dos valores
Os valores são grandezas inversamente proporcionais
Todos os valores são frações
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
A média ponderada é um tipo de média ______. Nela devemos multiplicar os valores pelos seus respectivos pesos, depois ______ e finalmente dividir pela soma dos ______.
Marque a opção que preencha as lacunas na ordem correta:
aritmética / somá-los / pesos
aritmética / somá-los / valores
geométrica/ dividi-los / pesos
geométrica/ dividi-los / valores
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Dados os valores 4 e 12, calcule o valor da média harmônica:
6
8
10
16
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
A média aritmética de certos valores é 6. Se a soma desses valores é 48, quantos valores são?
6
42
12
8
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