시
find Mean
Maria Lis
No. of student 6
20 125
7 12
30 35 40
14
15 16फाइंड मीन
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Mean=Sum of all observation/Total no of observation
=6+20+125+7+12+30+35+40+14+15+16/11
= 320/11
=29.09
.°. Mean is 29.09
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