Use the cumulative sum function cumsum and the bar graph function bar to produce a cumulative density plot of the standard normal distribution (i.e. N (0, 1)).

someone please help me. I have no idea how to do this.

[jgg]

Is this homework? What have you done so far?

[Vin Sen Lee]

hey, so far i have created this x=[-9:.1:9]; >> norm=normpdf(x,0,1) I have created the normal distribution function. So I scaled the x to be from -9 to 9 and I put in the parameter

[Vin Sen Lee]

I don't really understand what is the question asking

[jgg]

Trying looking up the documentation for the bar function. I think that, and your norm vector are all you need.

[Vin Sen Lee]

but I have to use the cumsum function.

[jgg]

How do you get a CDF? Add up the PDF. What does cumsum do? Add up a vector. Where is your PDF? In a vector named norm. How do you add up a vector? cumsum.

Just play around with it. You have all the tools you need.

[Vin Sen Lee]

I think I got it!! Thank you so much!!

[Faruk ÖZOVALI]

Hi, Vin Sen Lee,

have you solved this question. it's have been long time, but I am wondering whether you solved it or not. because I need the answer :(