A fair spinner has 9 equal sections: 3 red, 4 blue and 2 green. It is spun twice.
What is the probability of getting the same colour twice?

The probability of not getting two consecutive greens is 1 minus the probability of getting two consecutive greens. Since the spinner is fair, the probability of getting a green on any one spin is 4/9 . Since consecutive spins are independent, the probability of getting two consecutive greens is (4/9)2 . Therefore the probability of not getting two consecutive greens is

1−492=1−1681=6581≈80.2%

hope this helps

y=mx+b

step-by-step explanation:

m is slope, b is y-intercept