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Na tabela a seguir, estão listados os possíveis retornos de um projeto de investimentos e as respectivas probabilidades de ocorrências desses retornos:

O retorno médio esperado do Projeto A é igual a
Os valores a seguir representam uma amostra
3 3 1 5 4 6 2 4 8
Então, a variância dessa amostra é igual a
Os valores a seguir representam a quantidade de aviões que decolaram por hora durante as 10 primeiras horas de certo dia.
33 34 27 30 28 26 34 23 14 31
Logo, levando em consideração somente essas 10 horas,
pode-se afirmar corretamente que
Considere verdadeiras as premissas a seguir:
– Se Paulo é médico, então Sandra não é estudante.
– Se Sandra não é estudante, então Ana é secretária.
– Ou Ana não é secretária, ou Marina é enfermeira.
– Marina não é enfermeira.
Logo, pode-se concluir que:
Text 2
The advantage
1 CARE Acquiring a new aircraft is already a complex enough process. Acquiring a pre-owned aircraft can be an even more challenging task. The industry has its fair share of brokers and experts all willing to offer you the best deal in town but, regrettably, once you have signed and the aircraft is delivered, they tend to vanish as they move onto the next deal. Our philosophy is very different. Every Embraer aircraft we lease has passed through our own Embraer facilities. Every aircraft is treated with a level of service and care that can only come from those who built them in the first place.
2 SUPPORT In choosing one of our pre-owned aircraft, all of our customers share a common goal: to ensure that the aircraft delivered perform seamlessly from day one and continue to perform for many years to come. In response to this, we offer the Lifetime Program by Embraer. This program represents a first in the industry and is the result of a very detailed review between ECC and Embraer on how best to support our customers. The Lifetime Program is unique to preowned Embraer aircraft and offers a wide range of services from startup through operation.
3 RELIABLE So when an ECC pre-owned aircraft is offered for delivery to its new home you can rest assured that it will provide many years of happy, reliable service. Our focus does not end there since we value the relationships we build with our customers. Our Lifetime Program is testament to this. This is a unique and new service from Embraer to support our used aircraft. We invite you to learn, in greater detail, how it will not only enhance your operation, but also keep your Chief Financial Officer happy. Transparency in costs and flexibility in adapting to your needs. It is our way of showing that every Embraer aircraft we offer has our seal of approval. Coming from the manufacturer, that's no small thing.
Source: http://www.eccleasing.com/Pages/fator.aspx [slightly adapted
Text 2
The advantage
1 CARE Acquiring a new aircraft is already a complex enough process. Acquiring a pre-owned aircraft can be an even more challenging task. The industry has its fair share of brokers and experts all willing to offer you the best deal in town but, regrettably, once you have signed and the aircraft is delivered, they tend to vanish as they move onto the next deal. Our philosophy is very different. Every Embraer aircraft we lease has passed through our own Embraer facilities. Every aircraft is treated with a level of service and care that can only come from those who built them in the first place.
2 SUPPORT In choosing one of our pre-owned aircraft, all of our customers share a common goal: to ensure that the aircraft delivered perform seamlessly from day one and continue to perform for many years to come. In response to this, we offer the Lifetime Program by Embraer. This program represents a first in the industry and is the result of a very detailed review between ECC and Embraer on how best to support our customers. The Lifetime Program is unique to preowned Embraer aircraft and offers a wide range of services from startup through operation.
3 RELIABLE So when an ECC pre-owned aircraft is offered for delivery to its new home you can rest assured that it will provide many years of happy, reliable service. Our focus does not end there since we value the relationships we build with our customers. Our Lifetime Program is testament to this. This is a unique and new service from Embraer to support our used aircraft. We invite you to learn, in greater detail, how it will not only enhance your operation, but also keep your Chief Financial Officer happy. Transparency in costs and flexibility in adapting to your needs. It is our way of showing that every Embraer aircraft we offer has our seal of approval. Coming from the manufacturer, that's no small thing.
Source: http://www.eccleasing.com/Pages/fator.aspx [slightly adapted
Text 2
The advantage
1 CARE Acquiring a new aircraft is already a complex enough process. Acquiring a pre-owned aircraft can be an even more challenging task. The industry has its fair share of brokers and experts all willing to offer you the best deal in town but, regrettably, once you have signed and the aircraft is delivered, they tend to vanish as they move onto the next deal. Our philosophy is very different. Every Embraer aircraft we lease has passed through our own Embraer facilities. Every aircraft is treated with a level of service and care that can only come from those who built them in the first place.
2 SUPPORT In choosing one of our pre-owned aircraft, all of our customers share a common goal: to ensure that the aircraft delivered perform seamlessly from day one and continue to perform for many years to come. In response to this, we offer the Lifetime Program by Embraer. This program represents a first in the industry and is the result of a very detailed review between ECC and Embraer on how best to support our customers. The Lifetime Program is unique to preowned Embraer aircraft and offers a wide range of services from startup through operation.
3 RELIABLE So when an ECC pre-owned aircraft is offered for delivery to its new home you can rest assured that it will provide many years of happy, reliable service. Our focus does not end there since we value the relationships we build with our customers. Our Lifetime Program is testament to this. This is a unique and new service from Embraer to support our used aircraft. We invite you to learn, in greater detail, how it will not only enhance your operation, but also keep your Chief Financial Officer happy. Transparency in costs and flexibility in adapting to your needs. It is our way of showing that every Embraer aircraft we offer has our seal of approval. Coming from the manufacturer, that's no small thing.
Source: http://www.eccleasing.com/Pages/fator.aspx [slightly adapted
Text 2
The advantage
1 CARE Acquiring a new aircraft is already a complex enough process. Acquiring a pre-owned aircraft can be an even more challenging task. The industry has its fair share of brokers and experts all willing to offer you the best deal in town but, regrettably, once you have signed and the aircraft is delivered, they tend to vanish as they move onto the next deal. Our philosophy is very different. Every Embraer aircraft we lease has passed through our own Embraer facilities. Every aircraft is treated with a level of service and care that can only come from those who built them in the first place.
2 SUPPORT In choosing one of our pre-owned aircraft, all of our customers share a common goal: to ensure that the aircraft delivered perform seamlessly from day one and continue to perform for many years to come. In response to this, we offer the Lifetime Program by Embraer. This program represents a first in the industry and is the result of a very detailed review between ECC and Embraer on how best to support our customers. The Lifetime Program is unique to preowned Embraer aircraft and offers a wide range of services from startup through operation.
3 RELIABLE So when an ECC pre-owned aircraft is offered for delivery to its new home you can rest assured that it will provide many years of happy, reliable service. Our focus does not end there since we value the relationships we build with our customers. Our Lifetime Program is testament to this. This is a unique and new service from Embraer to support our used aircraft. We invite you to learn, in greater detail, how it will not only enhance your operation, but also keep your Chief Financial Officer happy. Transparency in costs and flexibility in adapting to your needs. It is our way of showing that every Embraer aircraft we offer has our seal of approval. Coming from the manufacturer, that's no small thing.
Source: http://www.eccleasing.com/Pages/fator.aspx [slightly adapted
Forecast lowered for air travel on slower China growth A weaker global economy — and a slowdown in China — will likely dampen some of the growth in air travel over the next two decades.
The International Air Transport Association says the number of airline passengers is expected to double to 7 billion by 2034. That figure marks a decrease from a prior forecast of passengers totaling 7.4 billion in 2034, reflecting lower economic growth in China that will be likely to reduce demand for travel and potentially limit airplane orders for manufacturers Boeing and Airbus.
Despite the lower forecast, China is expected to add 758 million new passengers for a total of 1.2 billion flyers. Those gains would likely mean that China surpasses the United States as the world’s largest passenger market by 2029.
Assinale a opção em que o trecho preenche a lacuna do texto de forma que o torne coeso, coerente e gramaticalmente correto.
O primeiro voo com passageiros da Panair foi feito em 1931, entre as cidades de Belém e Rio de Janeiro. Nesta época, todos os pilotos eram americanos. O primeiro piloto brasileiro foi o Coronel Luis Tenan, que assumiu o comando de uma das aeronaves em 1935. Antes disso, a Panair chegou até a Amazônia e sua atuação naquela região foi fundamental para que o governo levasse alimentos e remédios a pontos quase inatingíveis da selva. _________________________ _______________________________________________ _______________________________________________ _______________________________________ Para fazer essa travessia, a empresa tinha à disposição os modernos Constellations. O primeiro vôo foi realizado em 27 de abril de 1941. O destino era Londres, mas antes houve paradas nas cidades de Recife, Dakar, Lisboa e Paris. Em menos de três anos depois desta viagem inaugural, a Panair já havia realizado mil vôos para a Europa, transportando mais de 60 mil passageiros.
<http://www.areliquia.com.br/Artigos%20Anteriores/58Panair.htm>.
Acesso em: 13/12/2015 (com adaptações)
Assinale a opção que preenche as lacunas do texto de forma que o torne coeso, coerente e gramaticalmente correto.
Com capacidade __1__ transportar nove passageiros __2__ velocidade de cruzeiro de 150 knots e altitude de 20.000 pés com MTOW de 3.700 kg, a aeronave EC145 T2 é equipada __3__ dois motores turbo-eixo Turbomeca Arriel 2E, cada um deles controlado __4__ sistema de gerenciamento computadorizado (FADEC) duplicado, que entrega __5__ caixa de redução principal uma potência de 490 kW (710 shp). Uma das principais inovações do modelo foi a substituição do rotor de cauda convencional __6__ do tipo Fenestron que, entre outras características aerodinâmicas, proporciona considerável redução do nível de ruído na cabine. A nova suíte de aviônicos Helionix, da Airbus Helicopters, vem equipada __7__ piloto automático de quatro eixos e displays com novas funcionalidades. O processo de certificação da aeronave na ANAC empregou 350 horas e envolveu seis servidores da Agência (coordenador do programa e cinco engenheiros).
< http://www.anac.gov.br/Noticia.aspx?ttCD_CHAVE=2017>. Acesso
em: 13/12/2015 (com adaptações).

A auditoria presencial da Organização de Aviação Civil Internacional (OACI) informou recentemente que a Agência Nacional de Aviação Civil (ANAC) alcançou 96,49% __1__ conformidade no Universal Safety Oversight Audit Programme – Continuous Monitoring Approach (USOAP CMA), programa lançado __2__ resposta às preocupações __3__ adequação da vigilância da segurança operacional da aviação civil em todo o mundo. O resultado preliminar obtido __4__ Agência coloca o país __5__ quarto lugar no ranking de segurança operacional da aviação no mundo, ficando atrás __6__ Coreia do Sul, de Cingapura e dos Emirados Árabes Unidos. A nota obtida pela ANAC demonstra o desenvolvimento da Agência, a evolução de sua maturidade institucional e o aprimoramento da segurança operacional da aviação civil no país.
<http://www.anac.gov.br/Noticia.aspx?ttCD_CHAVE=1981&slCD_
ORIGEM=29>. Acesso em: 13/12/2015 (com adaptações).
A Embraer S. A. atualmente é destaque (1) internacional e passou a produzir aeronaves para rotas regionais e comerciais de pequena e média densidades (2), bastante (3) utilizadas no Brasil, Europa e Estados Unidos. Os modelos 190 e 195 ocupou (4) o espaço que era do Boeing 737.300, 737.500, DC-9, MD-80/81/82/83 e Fokker 100. A companhia brasileira é hoje a terceira maior indústria aeronáutica do mundo, com filiais em vários países, inclusive na (5) China.
< http://www.portalbrasil.net/aviacao_historia.htm>. Acesso em:13/12/2015. (com adaptações).
No final da década de 60 e início da década de 70 surgiram modelos capazes de transportar até 400 passageiros, como o Boeing 747, o Douglas DC-10, o Lockheed Tristar L-1011 ─ todos norte-americanos ─ e mais recentemente o Airbus (consórcio europeu), além do Douglas MD-11 e os Boeing 767 e 777 — também norte-americanos. ____________________ _________________________________________________ _________________________________________________ ______________________________. Esse voo era efetuado pela companhia aérea francesa Air France. A velocidade exigia uma aerodinâmica compatível e por isso os aviões eram mais estreitos. A Air France, a British Airways e a Aeroflot (russa) operaram essas aeronaves. A rota mais badalada era ParisNova Iorque, feita em apenas 4h30m. No final também houve interesse dos sheiks árabes, e foram realizados alguns voos para o oriente.
< http://www.portalbrasil.net/aviacao_historia.htm>. Acesso em:13/12/2015 (com adaptações).