The mean of x+2,x+3,x+4andx-2 is:
Mean of the data set.
The mean is calculated as, dividing the sum of all the observations by the total number of obsewrvations.
∴mean=(x+2)+(x+3)+(x+4)+(x-2)4⇒=4x+74⇒=x+74
Hence, the mean is x+74.
Simplify each of the following and write as a single polynomial.
(i)
(ii)
(iii)
(iv)
(v)