xyValuesAll = MapThread[Riffle[{#1},{#2}]&,{xValuesDb,yValues},1]
                 = MapThread[Riffle[{#1},{#2}]&,{{6.*10^-6,0.050006,0.100006,0.150006,0.200006,0.250006,0.300006,0.350006,0.400006,0.450006,0.500006,0.550006,0.600006,0.650006,0.700006,0.750006,0.800006,0.850006,0.900006,0.950006},{131.263,{0.0499359 +0.00218364 I,0.0502323 +0.00220999 I,0.0505305 +0.00223666 I,0.0508304 +0.00226367 I,0.0511322 +0.002291 I,0.0514358 +0.00231868 I,0.0517412 +0.00234669 I,0.0520484 +0.00237506 I,0.0523575 +0.00240377 I,0.0526684 +0.00243284 I,0.0529812 +0.00246227 I,0.0532959 +0.00249207 I,0.0536125 +0.00252223 I,0.0539309 +0.00255277 I,0.0542513 +0.00258369 I,0.0545737 +0.002615 I,0.0548979 +0.0026467 I,0.0552242 +0.00267879 I,0.0555524 +0.00271128 I,0.0558826 +0.00274418 I}}},1]


  ListPlot[xyValuesAll,AxesOrigin->{[Lambda]Min,0},AxesLabel->{"BS density","Coverage Probability"}]