According to a study conducted by a statistical organization the proportion of americans who are satisfied with the way things are going in their lives is 0.76. suppose that a random sample of 110 americans is obtained.
what is the probability that at least 80 americans in the sample are satisfied with their
what is the probability that 77 of fewer americans in the sample are satisfied with their lives?

Which of the following would be a correct step in proving that triangle abc is congruent to triangle cda? a. use a protractor to measure the angles and show that all the corresponding angles are equal in measure. this will allow you to prove congruence by aaa. b. show that segment ab is parallel to segment cd and segment ad is parallel to segment cb. this will allow you to prove congruency by asa. c. show that is segment ab is perpendicular to segment ad. this will allow you to prove congruence by sas. d. none of the above.