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["평균값 구하기(자동으로)"]
["구분","2020-01-05",null,null,"2020-01-15",null,null,"2020-02-05",null,null,"2020-02-15",null,null,"2020-03-05",null,null,"2020-03-15",null,null,3,"개월평균"]
[null,"1회",null,null,"2회",null,null,"3회",null,null,"4회",null,null,"5회",null,null,"6회",null,null,"평균값"]
[null,"국어","수학","영어","국어","수학","영어","국어","수학","영어","국어","수학","영어","국어","수학","영어","국어","수학","영어","국어","수학","영어"]
["김치국",60,70,85,65,75,90,67,null,88,{"$f":"AVERAGE(J5)","v":88},null,87,null,80,null,null,75,null,{"$f":"평균성적($T$4,B5:S5)","v":73.333335876464844}]
["강아지",null,90,null,null,91,null,79,85,81,81,92,null,null,86,85,88,82,90,{"$f":"평균성적($T$4,B6:S6)","v":82.666664123535156}]
["순대국",99,null,89,92,null,89,89,93,100,83,89,93,85,86,87,91,92,93,{"$f":"평균성적($T$4,B7:S7)","v":86.333335876464844}]
["서울대",null,null,92,null,93,81,85,94,null,null,90,null,85,null,88,93,89,95,{"$f":"평균성적($T$4,B8:S8)","v":87.666664123535156}]
["강능역",99,98,93,92,93,82,88,89,98,null,85,95,90,88,93,89,null,94,{"$f":"평균성적($T$4,B9:S9)","v":89}]
[]
["※시험일자에 결과치 입력하면 자동으로 평균값 구하기"]