Question

calculate arithmetic mean from the following data
class frequency
0-20. 10
20-40 12
40-60. 8
60-80. 10

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Answer 1

Answer:

I will not tell you the answer but I can give you a clue to solve this question

Explanation:

arithmetic mean :- One method is to calculate the arithmetic mean. To do this, add up all the values and divide the sum by the number of values. For example, if there are a set of “n” numbers, add the numbers together for example: a + b + c + d and so on. Then divide the sum by “n”.

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