# Normal Distribution & Z-scores

This video shows how to calculate “inside areas” and “areas in the extreme” in a normal distribution using Z-scores. This video can also be found on my website http://statstutor.books.officelive.com

Feel free to contribute!

i don't know why but in my table for the value of z 2.0 is 0.9772 and same goes for others..please help

Thank u!!!!!!

Thank you so much for the explanations. It helped me a lot

very nice explanation

Thank you very much ?

Couldn't you just recognize where the percentages lie within the bell shape? Or is this in case you need to prove it on a test or somethin

good job done to assist pupil

omg…….this is so helpful.thanks

Should you add or subtract when you are given a problem of "between"? Some teachers stated different kinds of methods.

why am i learning this.. i'm gonna drop out of college and be a billionaire.

im here because i need to teach my sister this shit and she's like on her phone right now doing shit ughhhhhh saaaaave meeeee

i am here for fucking exam :/

Great tutorial. This really helped me to understand normal distribution and z graphs.

You're a legend

thank you!