Question

The average marks in statistics of 10 students of a class were 81. A new student
admission who scored 92 marks, whereas existing students left the college
scored 56 and 36 marks. What is the new average marks?
(b) 90 marks
(a
81 marks
(d) 79.7 marks
82.8 marks
Consider the following frequency distribution of the height of 60 students
class:
150-155 155-160 160-165 165-170 170-1751 175-
9
8
Height (in cm)
10
13​

Answer 1

Answer:

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