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The cost of 250 articles is given below...

The cost of 250 articles is given below :

Construct a frquency distribution table for the data given above. Also , answer the following:
(i) how many articles cost from rupes 30 to less than rupes 50?
how many articles have cost at most rupes 40 ?
(iii) how many articles have cost at least rupes 50?

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