- Choice H
White : 10
Not-white : 3 red + 5 blue = 8
The probability of randomly selecting 1 button that is NOT white
$$= \frac{8}{10+8}=\frac{8}{18}=\frac{4}{9}$$Skills you are tested for:
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White : 10
Not-white : 3 red + 5 blue = 8
The probability of randomly selecting 1 button that is NOT white
$$= \frac{8}{10+8}=\frac{8}{18}=\frac{4}{9}$$
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