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The following table gives information re...

The following table gives information regarding weekly income of labourer working at a dam site.
`{:("Income in (₹)",200-300,300-400,400-500,500-600,600-700),("No. of employees",150,160,130,180,120):}`
Calculate the (i) median (ii) lower quartile (iii) upper quartile (iv) 5th decile.

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