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the mean of following distribution is 50, find the value of b and hence find the frequency of 30 and 70 ? ( for x : 10 , 30 , 50 , 70 , 90)  for y the values are:( 17 , (5b+3) , 32 , ( 7b-11) , 19 .

Asked by nisha_vini29 25th January 2016, 11:16 AM
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Answered by Expert 25th January 2016, 6:02 PM
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