find the mean of following marks (10 students)
10, 20, 30, 40 ,50 ,60 ,70 ,80, 90, 100,
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Answer:
mean=55
Step-by-step explanation:
sum of sll observations
mean =_________________
total no of observation
10+20+30+40+50+60+70+80+90+100
= _____________________________
10
550
= ___________
10
= 55
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