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for what value of x,the mean of the given observations 2x-5,x+3,7-x,5-x and x+9 with frequencies 2,3,4,6 and 1 respectively is 4 ? how to solve it?

Asked by satyendra 19th September 2013, 1:17 PM
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Answered by Expert 19th September 2013, 1:44 PM
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