Susan keeps track of the number of tickets sold for each play presented at the community theater. within how many standard deviations from the mean do all the values fall? justify your answer. 115, 150, 132, 66, 143, 110, 102, 102, 160, 114, 123, 92

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.