The sum of (x+5) observations is x⁴-625.find the mean of the observations
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Answered by
26
Solution :
Given ,
Sum of observations = x⁴ - 625
= ( x² )² - (25)²
= ( x² + 25 )( x² - 25 )
= ( x² + 25 )( x+5)(x-5) ---( 1 )
Number of observations = ( x + 5 )---( 2 )
Mean = ( 1 )/( 2 )
= [ (x²+25)(x+5)(x-5)]/(x+5)
= ( x²+25 )( x-5 )
•••••
Given ,
Sum of observations = x⁴ - 625
= ( x² )² - (25)²
= ( x² + 25 )( x² - 25 )
= ( x² + 25 )( x+5)(x-5) ---( 1 )
Number of observations = ( x + 5 )---( 2 )
Mean = ( 1 )/( 2 )
= [ (x²+25)(x+5)(x-5)]/(x+5)
= ( x²+25 )( x-5 )
•••••
Answered by
3
Answer:
Ans:- Hence mean of the observations is (x^2+25) (x-5)
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