(b) Average of the marks in Statistics of 10 students of a class was it. A new
student took admission with 72 marks whereas two existing students left the
college. If the marks of these students were 40 and 39, find the avenge marks of
the remaining students,
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Step-by-step explanation:
68 = total marks of 10 students / 10
680= total marks of 10 student
As one student added
Therefore,
Total marks = 680 + 72
= 752
2 left = 752-39-40
= 673
Avg. Marks = 673/9
74.77 (ANS) =
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