trueriver9088 trueriver9088
  • 21-11-2019
  • Mathematics
contestada

A fair spinner has 9 equal sections: 4 red, 3 blue and 2 green.

It is spun twice.

What is the probability of not getting two consecutive greens?

Respuesta :

Adetunmbiadekunle Adetunmbiadekunle
  • 21-11-2019

Answer:

14/81

Step-by-step explanation:

The probability of getting a green is number of green sections ÷ total number of sections = 2/4+3+2 = 2/9

Probability of not getting a green is = 1 - probability of getting a green = 1 - 2/9 = 7/9

Now we calculate the probability of not getting 2 consecutive greens. I.e probability of getting a green the first time and not getting it the second time= (2/9 × 7/9) = 14/81

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