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a bag contains 3 red marbles 4 green marbles and 2 black marbles. what is the probability of a red marble being pulled from the bag and without replacing it , the pulling a green marble out ?

Respuesta :

Answer:

1/6

Step-by-step explanation:

P (red)

  • No. of red / Total
  • 3 / 3 + 4 + 2
  • 3/9
  • 1/3

P (green without replacing red)

  • No. of green / Total - 1
  • 4 / 9 - 1
  • 4/8
  • 1/2

P (final)

  • P (red) × P (green without replacing red)
  • 1/3 × 1/2
  • 1/6

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