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Consider a political discussion group consisting of 10 ​Democrats, 7 ​Republicans, and 3 Independents. Suppose that...

Consider a political discussion group consisting of 10 ​Democrats, 7 ​Republicans, and 3 Independents. Suppose that two group members are randomly​ selected, in​ succession, to attend a political convention. Find the probability of selecting two Democrats.

Math   Statistics-And-Probability   
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Answer #1

Total people in the group = 10+7+3 = 20

Number of Democrats = 10

Hence, the probability of selecting two Demicrats

= (10C2)/(20C2)

= 45/190

= 9/38 or 0.2368

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