## PL Frequency The Arithmetic Mean of the following frequency distribution is 52.5 Find the value of ph Classes 0-20<

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Answer:If the total frequency is 100, find the values of x and y. 12 Classes Frequency | 0-10 2 10-20 5 20-30 x 30 – 40 40 – 50 17 50 – 60 20 60 ..