There are two questions here so if you wanna help with both you can or just 1 that's good as well I just can't fail this test

Answer:
The mean (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set. The median is the middle value when a data set is ordered from least to greatest. The mode is the number that occurs most often in a data set. Created by Sal Khan.
(question 7)
Step-by-step explanation: