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The mean of the following data is 50. Find the missing frequencies a and b.Class Intervals Frequencies 10-30 9 30-50 a 50-70 3 70-90 b 90-110 4 Total 20 |
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Answer» Answer: yes the missing following DATA is 10 but the total number of data is 20 then 30 is the correct answer mark me as BRAINLIEST |
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