Posted by **Stephanie** on Saturday, April 4, 2009 at 2:55pm.

Business and finance. The following scores were recorded on a 200-point 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.

- Geometry -
**sophie**, Saturday, April 4, 2009 at 6:30pm
a- 176 is the mean

not sure on the rest, sorry

- Geometry -
**Riley**, Monday, April 6, 2009 at 2:03pm
Mean= The "mean" is the "average" you're used to, where you add up all the numbers and then divide by the number of numbers.

Median= The "median" is the "middle" value in the list of numbers. To find the median, your numbers have to be listed in numerical order, so you may have to rewrite your list first.

For example:

take the set 1,2,5,4,2,3,7,4,1

Mean/average=

(1+2+5+4+2+3+5+4+1)

------------------- = 3

9

Median= 1,1,2,2,3,4,4,5,5 so the middle number would be 3.

Now which do you think better represents the set of data?

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