The AVERAGEIF function. It can also be done with a combination of the AVERAGE and IF functions, entered as an array formula.
The Average function. For example, to get the mean of the cells from A2 to A15, you would use it this way: =AVERAGE(A2:A15)
when cells are designed to do a specific function
The Average function in Excel totals a range of cells and divides the total by the amount of values in those cells. In mathematics this is known as the Arithmetic Mean.
Ya mum
The cell has a specific function. Nerve cells, blood cells, and root cells are all types of specialized cells.
Unspecialised means no specialised function. For example ciliated cells vs nonciliated cells.
Cells are the basic structure of living things, im not so sure about what you mean by basic function.
To be technically accurate, no function does this. The answer you are looking for is the AVERAGE function. It divides by the amount of cells that have values in them, not by the amount of cells. In most situations, all of the selected cells have values in them, but there are cases when they don't.
"Specialized" means they have a very particular function in the body. For example, nerve cells only conduct nervous impulses, rod and cone cells only function in vision, gametes only function to pass on genetic information etc.
I am not entirely sure what you mean; but basically, you can evaluate (calculate) the function for each value of the variable.
The answer depends on what you mean by "do". Does it mean calculate individually, calculate the probability of either one or the other (or both), calculate the probability of both, calculate some function of both (for example the sum of two dice being rolled)?
Cells that are specialized in multicellular organisms means they do many things. This is what helps the body function.