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probability of the spinner

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Assume that the spinner cannot land on a line. Determine the probability that the spinner lands on (a) red, (b) green, (c) yellow, (d) green.
The spinner is divided into 8 halves. There are (a) red = 4, (b) green = 1, (c) yellow = 1, and (d) blue = 2
The spinner landed on yellow so it would be 1/8 or 1:8, right?

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The probability of the spinner is illustrated in this tutorial.

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The probability that the spinner lands on a particular color is proportional to the area occupied by this color, with the total area of the spinner being 1. So, the probability that the spinner lands on ...

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