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Daily wages of 80 workers: ₹200–250: 8, ₹250–300: 16, ₹300–350: 24, ₹350–400: 20, ₹400–450: 12. Using the step-deviation method, find the mean daily wage.

Competition practiceStatistics
  • A₹332.5
  • B₹317.5
  • C₹325.15
  • D₹330

Step-by-Step Solution

. Mean .
Answer: A) ₹332.5

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