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###### An election ballot asked voters to select three city commissioners from a group of six candidates. In how many ways can this be done?

an election ballot asked voters to select three city commissioners from a group of six candidates. In how many ways can this be done?

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Let Y1, Yz; Yn denote a random sample irom population having Poisson distribution with mean /1 Let X1, Xz, Xm denote an independent random sample from population having Poisson distribution with mean /2: Derive the most powerful test for testing Ho A1 = /2 = 2 versus Ha 11 = 1/2,^2...

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You have the following: 100mL of 1.0M H2CO3(pKa=6.4) 100mL of 1.0M NaHCO3(pKa=10.3) 100mL Ethanol (pKa=16) 100mL of 1.0M Na2CO3 Explain which solution you would use to make a 1M carbonate buffer with a pH of 6. How much of each solution would you use to make the carbonate buffer at pH of 6 and indic...