Interactive Graph of the Standard Normal Curve

Posted Comments

There are 19 Comments

November 22, 2011 | Dr. A wrote:

fun and creative! Thanks 

---

November 6, 2011 | Dr.S.Sakthivel wrote:

Article is simple & clear  

---

November 5, 2011 | Art wrote:

Interactive curve says more than all the words normally used to explain this. 

---

September 13, 2011 | anonomous wrote:

If you had all the math somewhere (i.e. HOW it takes in a z-score and outputs a Percentile), that would be great! 

---

July 19, 2011 | Donna Smith wrote:

Thankyou so much!!! With the help of this fantastic web site, I just might pass my Statistics class... 

---

July 19, 2011 | anonomous wrote:

I am taking Inferential Stats (after 40 years away from the classroom) and have been on another planet. This really helped me understand z-scores. and get back into the classroom. The graphics are excellent teachers. I am a visual learner. 

---

November 4, 2010 | Six Sigma Student wrote:

Excellent definitions for z-scores and standard deviation. I especially liked the interactive curve. That
pulled it all together for me. I've been studying the Six Sigma workbook for a week and was utterly lost
on z-scores and how they relate to the normal curve graph. Now, it's all clear. Thank you so much.  

---

December 7, 2009 | srinivasan wrote:

Is 3.4 ppm in 6sigma is applicable to unilateral tolerance , how 

---

December 7, 2009 | srinivasan wrote:

Is z score and std deviation are same are different 

---

December 7, 2009 | srinivasan wrote:

I would like to know the z score and ppm calculation for unilateral & bilateral toleraqnce 

---

November 24, 2009 | ROLY B. BAYO-ANG wrote:

VERY INTERACTIVE SITE 

---

November 13, 2009 | Christy Muth wrote:

What percentage of architects have Z scores (a) above .10, (b) below .10, (c) above .20, (d) below .20, (e) above 1.10, (f) below 1.10, (g) above -.10, (h) below -.10?
Suppose that the scores of architects on a particular creativity test are normally distributed. What percentage of architects have Z scores (a) above .10, (b) below .10, (c) above .20, (d) below .20, (e) above 1.10, (f) below 1.10, (g) above -.10, (h) below -.10? 

---

July 20, 2009 | Adell wrote:

I have the results of a final exam for 2 classes. I have the number of students that scored correctly on each question and the percentage. I would like to determine if the students did better on the questions that were "taught" 4th quarter compared to what they had been taught the other 3 quarters. Is a z test appropriate? 

---

February 16, 2009 | anonomous wrote:

would be much more useful if you also include much larger z-scores 

---

October 2, 2008 | Jeseme wrote:

How do i compute for the standard score (z-score)of the following data? How will the graph look like?
53
53
50
45
45
43
42
42
41
40
39
39
39
38
37
36
36
36
36
34
34
32
32
32
32
31
31
30
30
29
28
27
27
26
18 

---

March 19, 2008 | Kevin Horton wrote:

Jeff, great website. Do you happen to have a page that calculates 95% CIs for percentiles (i.e. 95th percentile)? Thanks. 

---

February 22, 2008 | Robert wrote:

What is the difference between z-score and standard deviation? 

---

January 11, 2008 | Sugato Banerjee wrote:

Beautiful but i wish the graph would cover 6 sigma level too 

---

January 10, 2008 | Sterling Gardiner wrote:

This is just awsome. . .make stats much easier! Thanks! 

---

Post a Comment

Comment:

Your Name:

Your Email Address:

To prevent comment spam, please answer the following :
What is 1 + 4: (enter the number)