Q16 of 69 Page 6

The arithmetic mean of the following frequency distribution is 53. Find the value of p:


Now,



⇒53 (72+p) = 3340 + 70p


⇒3816 + 53p = 3340 + 70p


⇒ 53p – 70p = 3340 – 3816


⇒ -17p = -476


⇒ p = 28


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