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Q113193 Estatística
A soma dos desvios ao quadrado de um grupo de medidas em relação à média dividido pelo total de valores, é igual :
Alternativas
Q113192 Estatística
Considere a seguinte distribuição de freqüência relativa
acumulada. Considere 100 anos como a idade máxima da
distribuição. Com base na tabela responda às questões 21 e
22.

Imagem 007.jpg

Sobre a distribuição, é correto afirmar que:
Alternativas
Q113191 Estatística
Considere a seguinte distribuição de freqüência relativa
acumulada. Considere 100 anos como a idade máxima da
distribuição. Com base na tabela responda às questões 21 e
22.

Imagem 007.jpg

Aidade média é aproximadamente:
Alternativas
Q113190 Inglês
GadgetDesigners Push the Limits of Size, Safety
By Brian X. Chen, August 28, 2008

Just as small, fast-moving mammals replaced lumbering
dinosaurs, pocketable gadgets are evolving to fill niches that
larger, deskbound computers can't reach. But as they shrink,
these gadgets are faced with problems mammals face, too,
such as efficiently dissipating heat.

The recent example of Apple's first-generation iPod nanos
causing fires in Japan raises the question of whether
increasingly innovative product designs are impinging on
safety. The nano incident illustrates how risk can increase as
devices decrease in size, says Roger Kay, an analyst at
EndpointTechnologies.

"As [gadgets] get smaller, the tradeoffs become more difficult,
the balance becomes more critical and there's less room for
error," Kay said. "I'm not surprised it's happening to the nano
because that's the small one. You're asking it to do a lot in a
very, very small package and that's pushing the envelope.”

There's no question that industrial designers' jobs have
become much more difficult as the industry demands ever
more powerful and smaller gadgets. With paper-thin
subnotebooks, ultrasmall MP3 players, and pinkie finger-
sized Bluetooth headsets becoming increasingly popular, it's
questionable where exactly designers draw the line between
innovation and safety.

The expression such as in the last line of the first paragraph could be changed by ____ and its meaning would not altered.
Alternativas
Q113188 Inglês
GadgetDesigners Push the Limits of Size, Safety
By Brian X. Chen, August 28, 2008

Just as small, fast-moving mammals replaced lumbering
dinosaurs, pocketable gadgets are evolving to fill niches that
larger, deskbound computers can't reach. But as they shrink,
these gadgets are faced with problems mammals face, too,
such as efficiently dissipating heat.

The recent example of Apple's first-generation iPod nanos
causing fires in Japan raises the question of whether
increasingly innovative product designs are impinging on
safety. The nano incident illustrates how risk can increase as
devices decrease in size, says Roger Kay, an analyst at
EndpointTechnologies.

"As [gadgets] get smaller, the tradeoffs become more difficult,
the balance becomes more critical and there's less room for
error," Kay said. "I'm not surprised it's happening to the nano
because that's the small one. You're asking it to do a lot in a
very, very small package and that's pushing the envelope.”

There's no question that industrial designers' jobs have
become much more difficult as the industry demands ever
more powerful and smaller gadgets. With paper-thin
subnotebooks, ultrasmall MP3 players, and pinkie finger-
sized Bluetooth headsets becoming increasingly popular, it's
questionable where exactly designers draw the line between
innovation and safety.

In the sentence: “But as they shrink, these gadgets with problems mammals face too, such as dissipating heat.” First paragraph, the author of the text believes that…
Alternativas
Respostas
131: D
132: A
133: B
134: B
135: B