Yefim S. answered • 05/18/21
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P(blue) = 21/(21 + 9) = 21/30 = 0.7
Justice P.
asked • 05/18/21A jar contains 9 red buttons, and 21 blue buttons. A button is taken at random from the jar. What is the probability that it is blue?
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Jon S. answered • 05/18/21
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30 total buttons, 21 blue buttons, so probability 21/30 = 7/10 of picking a blue button.
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