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20 March, 14:41

67.7% of males over the age of 50 have had a sigmoidoscopy or colonoscopy. If two males over the age of 60 are randomly selected, what is the probability that they both have had a sigmoidoscopy or colonoscopy?

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  1. 20 March, 15:21
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    Hello,

    45.8%

    Step-by-step explanation:

    67.7% x 67.7% = 0.677 x 0.677 = 0.677² = 0.458329 ≈ 45.8%
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