Answer:
See below ....
Explanation:
The mean means average. To find it, add together all of your values and divide by the number of items.
8.4 + 7.7 + 8.6 ...... = 74.60 / 9 = 8.29
The median is the middle number of your data set when in order from least to greatest.
8.5
The mode is the number that occurs the most often.
8.6 (It appears twice.)