R.m.s: distances of points y from mean value of freq. distro are related to variate x

[Anthonyk2013]

Answer in book is 2.198

can see where I have gone wrong.

 

[Deleted member 4993]

Answer in book is 2.198

can see where I have gone wrong.

The third line is incorrect.

(x + 1/x) ^2 = x^2 + 2 + x^(-2)

Integrating that you should get:

1/3 * x^3 + 2 * x - 1/x

Now apply limits and then take square-root of that number.

 

[Anthonyk2013]

The third line is incorrect.

(x + 1/x) ^2 = x^2 + 2 + x^(-2)

Integrating that you should get:

1/3 * x^3 + 2 * x - 1/x

Now apply limits and then take square-root of that number.

Thank you.