Question

a) show that
(1-W) (1-W2) (1 - W5] (1-w') = 9​

Answer 1

Answer:

Arithmetic mean =  

No. of observations

Sum of all observations

​  

 

⇒0=  

4

1+2+x+3

​  

 

⇒0=6+x

⇒x=−6

Answer 2

Answer:

Here is your answer.

I hope it may help you.