Respuesta :

The mean is the average number of all the other numbers. 

For example say you have a set of numbers 1, 2, 3, 4, 5, 
To find the mean you would first add them all up
1+2+3+4+5=15
Then you would divide by how many numbers there are 
15/5=3
The mean is 3

Are positive numbers greater then negative numbers?