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	4
9	7
8	11
7	15
6	13
5	11
4	7
3	4
2	4
1	4
0	0

Calculate the cumulative relative frequencyfor a score of "7" among the Grade 2 students on the math test. Round your answer to two decimals. Do not express your answer as a percentage, but as a decimal (e.g., 0.25).