A researcher is interested in studying the effects of ambient sounds to help Grade 2 students focus on their school activities. They have all Grade 2 students from a local elementary school listen to sounds recorded in a forest while having them complete the math test. The performances of the Grade 2 students are recorded as follows (lowest score is 0, highest score is 10):

Score	Students
10	2
9	8
8	11
7	18
6	10
5	11
4	10
3	7
2	4
1	4
0	2

Calculate the populationvariance of all the Grade 2 students at the school on the math test. Round your answer to one decimal.