Doubt with sample proportion (1 Viewer)

[Leggie]

When you are changing a normal table to a sample proportion table how do you change the frequency?
Here is an example



Why is this the answer?

 

[cossine]

When you are changing a normal table to a sample proportion table how do you change the frequency?
Here is an example

View attachment 36097

Why is this the answer?
View attachment 36098

To give an analogy. Let suppose you throw a coin 20 times, and gettng 13 heads. Then proportion of heads is 13/20.

1/20 is use because of 20 weeks. So fr = f * 1/20.