17. Ten students from Cordell Middle School competed in a math competition at SWOSU in Weatherford. The scores obtained by them were recorded as follows:
11, 6, 7, 13, 1, 13, 16, 7, 13, 16
What was the mean, median, and mode of their scores? Round to the nearest tenth. _________________________________________________________________
18. The Cordell Math Coach places an ad in the paper. Which measure of central tendency should she use when writing the article? Defend your answer. _________________________________________________________________
19. Jimmy had an average of 88 on his weekly mathematics tests for the first 5 weeks. What would he need to make in the 6 thweek to have an average of 90? ________________________
20. The first seven runners on the Ardmore Tiger cross country team had an average time of 14.6 minutes. To make the state meet they need an average of 13.8, what time must the last runner have for the team to qualify? ________________________