mean of 32 and standard deviation of 6 years what percent is older than 38

Guest Apr 22, 2015

#4**+5 **

Thanks Alan,

I have added this calc to our "Reference Material" sticky thread.

It is in the calculator section - there are other good statistic calcs there as well.

I refer to this thread almost every day.

It would be good if all answerers familiarized themselves with what is in there.

Melody
Apr 23, 2015

#1**+5 **

Assuming the distribution is Normal (Gaussian) then the percentage is 15.87%

I used http://www.mathportal.org/calculators/statistics-calculator/normal-distribution-calculator.php to do this.

.

Alan
Apr 22, 2015

#3**+5 **

I took the picture from the site I referenced. You can ask it "Show me an explanation" after it has done the calculation, and this will include the graph.

.

Alan
Apr 23, 2015

#4**+5 **

Best Answer

Thanks Alan,

I have added this calc to our "Reference Material" sticky thread.

It is in the calculator section - there are other good statistic calcs there as well.

I refer to this thread almost every day.

It would be good if all answerers familiarized themselves with what is in there.

Melody
Apr 23, 2015