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Business, 23.06.2021 14:40 kajjumiaialome

O Diagrama de Dispersão, também conhecido como Gráfico de Dispersão, é uma das ferramentas que compõem a qualidade. Ela é identificada como um gráfico de eixos verticais e horizontais, correlacionando a causa e efeito. Por esse motivo, com esses dados correlacionados, é possível perceber neste Diagrama se existe ou não relação de causa e efeito entre as variáveis. A respeito do diagrama de dispersão, são feitas as seguintes afirmações:
I - Um diagrama de dispersão irá conter sempre duas variáveis, sendo uma dependente e outra independente.
II - A presença de escalas no diagrama é irrelevante, visto que o único aspecto importante no diagrama são os pontos.
III - A melhor forma de entender o quanto as duas variáveis se correlacionam é a partir da determinação do coeficiente r.
IV - Uma maior quantidade de pontos irá, necessariamente, fazer com que o valor de r aumente.

É correto o que se afirma em:
Alternativas
Alternativa 1:
I, apenas.

Alternativa 2:
I e III, apenas.

Alternativa 3:
II e IV, apenas.

Alternativa 4:
III e IV, apenas.

Alternativa 5:
I, II, III e IV.

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Answers: 2

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