Page 17 - TB_6B

Math Story Diving Scores

The mean is used to calculate the diving score. Seven judges give scores.
The mean of the scores is calculated after the highest and the lowest
scores are excluded.
The reason is to prevent judges from giving biased scores because of their
nationalities.

The scores of two athletes are shown below. Follow the rule above to find
the athlete with the higher score.

Athlete A Athlete B

Cross out the 9. 5 Cross out the 7. 5 7. 5 9. 5
highest score. lowest score. 9. 0 9. 5 8.5 9. 0

9. 5 8.0

8.0 8.5 8.5 8.5

Find the mean of the scores after excluding the highest and the lowest scores.

Sum of scores: Sum of scores:
9. 5 8.0 8.5 8.5 8.5 = 43 Mean:
43 points

Mean: 43 5 = 8.6

6