A study has been done to determine whether ornot a certain drug leads to an improvement insymptoms for patients with a particular medicalcondition. The results are shown in the followingtable. In this study, does the drugs leads to animprovement in symptoms for patient? *ImprovementNo ImprovementTotalDrugNo Drug270530800120280400Total3908101200Yes, because the probability of the patients whoimproved and have taken the drugs is 69%.No, because the probability of the patients who didnot improved and have taken the drugs is 67.5%.Yes, because the probability of the patients whoimproved and have taken the drugs is 33%.No, because the probability of the patients who didnot improved and have taken the drugs is 44%.

From the data, there are totally 1200 patients were taken in this study in which 270 patients were…

A study has been done to determine whether or not a certain drug leads to an improvement in symptoms for patients with a particular medical condition. The results are shown in the following table. In this study, does the drugs leads to an improvement in symptoms for patient? * Improvement No Improvement Total Drug No Drug 270 530 800 120 280 400 Total 390 810 1200