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Aleksandr [31]
3 years ago
6

In a fuel economy study, each of 3 race cars is tested using 5 different brands of gasoline at 7 test sites located in different

regions of the country. If 2 drivers are used in the study, and test runs are made once under each distinct set of conditions, how many test runs are needed?
Business
1 answer:
romanna [79]3 years ago
4 0

Answer:

210

Explanation:

  • The number of race cars = N₁ = 3
  • The number of gasoline brands = N₂ = 5
  • The number of test sites = N₃ = 7
  • The number of drivers that participated = N₄ = 2

This study must include each N₁, and it has to be done at each N₃, using each N₂, while carried out by each N₄ ⇒ that means that the total number of possibilities:

N₁ x N₃ x N₂ x N₄ = 3 x 7 x 5 x 2 = 210

The total number of test runs is 210.

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