Pls answer 30th que part 1:

30. The arithmetic mean of the given frequency  distribution is Rs 472 and the total number of employees is 100. Find the value of p and q.
Daily income (in Rs)  200-300 300-400 400-500 500-600 600-700 700-800 800-900
No. of employees 5 p 24 q 9 6 4

 



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mode = 36.81
mean = 8750
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1st part!!
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