Using it's concept, it is found that there is a 0.7778 = 77.78% probability that the marble drawn will not be blue.
What is a probability?
A probability is given by the number of desired outcomes divided by the number of total outcomes.
In this questions, there are 8 + 6 + 12 + 10 = 36 marbles, of which 36 - 8 = 28 are not blue, hence the probability is given by:
p = 28/36 = 0.7778 = 77.78%
More can be learned about probabilities at https://brainly.com/question/14398287
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