Question

If the mean of number x+1 x x+3 mean is 7 then mean of x^2 , x+4 , x+2

Answer 1

Answer:

The mean of x^2, x+4, x+2 will be 16.483 if the mean for x+1, x, x+3 IS 7.

Step-by-step explanation:

From the mean given as 7 , we can calculate the value of x by substituting the values in our formula for mean of raw data, that is;

$Mean = total sum of all items / number of items$

         7= (x+1)+x+(x+3)

                    3

         7= (3x + 4)/3

        21= 3x +4

        21-4= 3x

        x=5.6667

we now substitute for the value of x in the new set of data that is x^2, x+4, x+2. lets now obtain the mean using the above  found value of x

(X^2)+(x+4)+(x+2)= mean

          3

but x = 5.6667

therefore ,the above equation becomes ;

   (5.6667^2)+(5.6667+2)+(5.6667+4)= mean

                     3    

      32.1115+7.6667.9.6667 =mean

               3

                   = 49.449/3

                  =16.483

I do hope that the solution wasr resourceful!