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If the mean of a frequency distribution is 8.1 and `sumf_ix_i =132 + 5 K, sumf_i = 20` then K =

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If the mean of a frequency distribution is 8.1 sumf_ix_i= 133+5k and sumf_i = 30 , find the value of k.

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UNITED BOOK HOUSE-HATI HIGH SCHOOL-EXERCISE
  1. Fill in the blanks If 7sqrt2,x,7-sqrt2 are in continued proportion t...

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  2. Fill in the blanks A tangent from an external point A' touches the c...

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  3. If the mean of a frequency distribution is 8.1 and sumfixi =132 + 5 K,...

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  4. Write True or False : The compound interest will be increased if the...

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  11. In a business A invests Rs 600 and B invests Rs 900 for 4 month. If A'...

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  13. If x= 5+2sqrt6 then find the value of sqrtx+1/sqrtx.

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  14. In triangleABC, DE||BC. If AD = x, BD= x+3, AE = x-2, EC = x-4, then f...

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