3 5 P 6 7 8 10 11 12 13 14 An urn contains 10 red...

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Question

Answer 1

Answer #1

1)P(2 red and 3 yellow)=¹⁰C₂*⁷c₃/¹⁷C₅ =0.254

2)standard deviation =(6.1-3.1)/2.326 = 1.29

3)a)P(B n Ac)=0.21

b)probabilty =0.28

Answer 2

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