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The median of the following data is 525...

The median of the following data is 525 .Find the values of x and y, if the total frequency is 100
`{:("Class interval "," Frequency "),(0-100," "2),(100-200," "5),(200-300," "x),(300-400," "12),(400-500," "17),(500-600," "20),(600-700," "y),(700-800," "9),(800-900," "7),(900-1000," "4):}`

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The correct Answer is:
x = 9 , y = 15
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