Economy, asked by ishikashar0509, 1 day ago

solve the questions by using two methods (assumed mean method and step deviation method).
marks. number of students
20. 8
30 12
40. 20
50. 10
60. 6
70. 4

please solve it right and i will mark your answer as brainliest.

Answers

Answered by gagaurqv

1

Answer:

there are two method are 20.8 and 30.12

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