Scores on the mathematics part of the SAT exam in a recent year were roughly Normal with mean 455 and standard deviation 120. Yo
u choose an SRS of 100 students and average their SAT math scores. If you do this many times, with a sample of size 100 each time, the standard deviation of the average scores will get close to:A. 120 B. 1.2 C. 12 D. None of the above.
