34. Find out missing frequency for the following data if arithmetic mean is 23.
Marks
0-10
10-20
20-30
30-40
40-50
No. of students
4
8
?
6
2
how ans.10 come
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34. Find out missing frequency for the following data if arithmetic mean is 23.
Marks
0-10
10-20
20-30
30-40
40-50
No. of students
4
8
?
6
2
how ans.10 come
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it's depending on following data not by collecting data