Current Attempt in Progress In a November 1992 survey, the Roper Organization asked American adults, "Does it seem possible or does it seem impossible to you that the Nazi extermination of the Jews never happened?\" The results were very surprising and widely discussed. Of the 992 adults surveyed, 22% responded that it's possible that this never happened, and 12% responded that they did not know. Therefore, only 66% of the respondents expressed certainty that the Holocaust did happen. When the Roper Organization conducted another survey in March of 1994, they asked, \"Does it seem possible to you that the Nazi extermination of the Jews never happened, or do you feel certain that it happened?\" The results from the 1994 sample of 991 adults were that 91% answered that they were certain the Holocaust happened, 8% did not know, and 1% thought it possible that it never happened. 68% A Irccd.instructure.com - Private Produce an appropriate graph for comparing the results between the 1992 and 1994 surveys. O 100% 90%% 80% 70% 1992 60% 1994 50% 40% 30% 20% 10% 0% Certain happened Possible didn't Don't know happened O 100% 90%% 80% 1992 70% 1994 60% 50% 40% 30% 20% 10% 0% Certain happened Possible didn't happen Don't know 60% 50% 40% 1992 30% 1994 20% 10% 0% Certain happened Possible didn't Don't know happened O 70% 60% 50% 1992 40% 1994 30% 20% 10% 0% Certain happened Possible didn't Don't know happened