The ages of 22 students in a karate class are given below
11, 5, 9, 13, 8, 9, 9, 11, 10, 8, 6, 7, 12, 11, 13, 12, 11, 13, 12, 7, 6, 11, 12, 10, 8
What is the spread (range) of the data?
What is the mode of the data?
How many students are at least 10 years old?