# Understanding averages, std deviation, stddev pop, variance, etc

Okay so I have a gender field, and I'm trying to understand some differences between males and females for some situations.

There are many more males than females.

So to properly understand how many females do something vs how many males do something, what am I trying to do here? Is that standard deviation? What's pop mean?

What kind of graph should I be trying to create to compare differences, taking into account there's more of one than the other?

• ###### 1. Re: Understanding averages, std deviation, stddev pop, variance, etc

In this case, you would use a proportion.  This means

Number of Males who do something / Total Number of People who do something.

For example, if you have 40 males that exercise and 60 females, your male proportion would be

40 / ( 40 + 60 ) = 40 / 100 = 40%

and your female proportion would be

60 / (40 + 60 ) = 60 / 100 = 60%.

If you give us a more complete picture of what you are trying to accomplish, we could give you some more precise details.

Hope this helps,