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Step-by-step explanation:
(i) Highest- 95
Lowest- 39
(ii) 39-95
(iii) Mean=85+76+90+85+39+48+56+95+81+75/10
=730/10=73
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1 ) highest marks:95
lowerest marks:39
2) Range :95-39= 56
3) Mean = sum of all number/total number=730/10=73
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