0.9 of 20:
You could also think of 0.9 as 9/10.
9/10, if you multiply by 2/2, is 18/20.
So therefore, you would then know that it would be 18, because 20 was the whole number, so what over 20 is equal to 9/10? 18.
A simpler method is just to multiply. 0.9 * 20 = 18.
Answer:
Yes, I just checked it. All of it is right!
Step-by-step explanation:
Good Job!!
The table below summarises the calculation for the standard deviation of x-bar.
Therefore, the standard deviation of x-bar is approximately 1.23.