Question

The sum of (x-2) observation (x³-8).find the mean of
observation​

Answer 1

Answer:

Number of observation = x + 5

Sum of observation = x³ + 125

.

Mean = Sum of observation ÷ Number of observation

\text {Mean = }\dfrac{x^3 - 125}{x + 5}Mean =

x+5

x

3

−125

\text {Mean = }\dfrac{x^3 - 5^3}{x + 5}Mean =

x+5

x

3

−5

3

\text {Mean = }\dfrac{(x + 5)(x^2- 5x +25) }{x + 5}Mean =

x+5

(x+5)(x

2

−5x+25)

\textbf {Mean = }x^2- 5x +25Mean = x

2

−5x+25

Hope it helps u.............✌