math 115
posted by Sam .
The following scores were recorded on a 200point final examination:
193, 185, 163, 186, 192, 135, 158, 174, 188, 172, 168, 183, 195, 165, 183.
(a) Find the mean final examination score.
(b) Find the median final examination score.
(c) Is the mean or median a more useful representative of the final examination
scores? Write a brief paragraph justifying your response.

(a) To get the mean, compute the average of those numbers.
(b) The median is the number in that group that is less than 7 and greater than 7 of the other numbers.
(c) What do YOU think? The median is not affected by the how well the best student does or how poorly the worst student does, but the mean is. The median mainly tells how well the "average student", in the middle of the class, did.