|Mean =||X / N =||452 / 15 =||30.13|
The median is 27. Half of the scores fall above this number and half fall below.
Mode is equal to 22. It occurs 3 times; all other scores occur only 2 times or less
The mean number of minutes spent solving the problems on the computer was approximately 30 minutes. Half of the students spent more than 27 minutes solving the problems, and half spent less time solving the problems. More students spent 22 minutes solving the problems than any other amount of time.
The data indicate a slight positive skew. This is most likely due to the students who spent over 40 minutes working on the trigonometry problems. Note, that it is a very slight skew - only approximately a 3 minute difference between the mean and median.