if you mean what is an odd number whose has the same number of factors as the number itself... then 1 will work.
median means the number that appears in the middle
In all music 'Op' or Opus mean 'work' so Op 77 would mean work number 77.
Not sure what you mean with "work"; an even number is a number that is divisible by 2, that is, if you divide it by 2, you get no remainder. An odd number, if divided by 2, has a remainder of 1.
A number model is something that shows the work u did. For example 5+6=11 that is a number model
If you mean the range, it means that you work out the difference between the smallest and biggest number in a sequence.
In all music 'Op' or Opus mean 'work' so Op 77 would mean work number 77.
you add all our givens and divide by the number of items given
The mean is the average of a set of numbers in arithmetic, calculating by adding them together and dividing by the number of them.
You add all the scores together then divide by the number of things you have got.
Standard deviation is equal to the square root of the variance. To arrive at this work out the mean, then subtract the mean and square the result of each number. Then work out the mean of those squared differences and take the square root of that.
Yes, to volunteer for something mean you do it for free so no social security number will be needed or asked for.