Variance and Standard Deviation of Grouped Data

[@ModouLowe-z2t]

No man like you. Thanks a lot

[@OninabResources]

Wow! You are welcome. We are so happy for your kind words. 💕 💕 💕

[@TejaswiPadarthi]

nice explanation sir , easy to understand

[@OninabResources]

Thanks and I am glad to know this. I really appreciate your feedback.
Warm regards.

[@aaronayubasamaila8821]

A quick question please. When do you know you are dealing with a sample of a population and the whole population itself because 2 different videos you used the n-1 and now you are using N.

[@praisetochukwu8130]

Very helpful ,thank you

[@OninabResources]

Glad it was helpful! You are welcome

[@gideonkipruto3987]

What is the difference between the denominator (n-1) and (n) and when do I know when to use (n-1) and when to use(n)

[@emmanuelnwachukwu6071]

I need clarification on this too

[@patriciaminala9446]

Please someone to explain

[@charlottemuzombi7369]

Very helpful thank you so much

[@OninabResources]

You are welcome.
We are glad you enjoyed the video.
Warm regards.

[@aransiolaeyitayo]

Good job sir
But why is the formula of the variance different from the other ones

[@ghl9080]

Thank u so much

[@OninabResources]

You are highly welcome.

[@rebeccachepkemoi8896]

Great, why don’t we use N instead of N-1 as they have not specified if it’s a sample.

[@ełijaħ]

pls many has already asked… when should we use n-1 or just n

[@OninabResources]

You use n - 1 when you are dealing with sample data and the n when dealing with entire population.

[@OninabResources]

You use n - 1 when you are dealing with sample data and the n when dealing with entire population.

[@ishimwefabrice450]

How do you tell this is a sample​@@OninabResources