The syntax is... sum(start:end) - where 'start' is the first cell in the range and 'end' is the last.
Sum Function
The Excel function that returns the number of cells in a range is COUNTA. This function counts all non-empty cells in the specified range, including numbers, text, and logical values. If you want to count only numeric values, you can use the COUNT function instead.
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.
The Auto Calculate area in Excel shows summary statistics, including the Count of Numbers. This displays the number of cells containing numerical values in the selected range.
It sounds like you are asking about the SUMIF function. SUMIF adds all numbers in a range of cells, based on a given criteria.=SUMIF(range,criteria,sum_range)range = range of cells that you want to apply the criteria against.criteria = determines which cells to add.sum_range = range of cells to sum.
No, the range automatically selected by Excel isn't always right. Excel doesn't know what the user wants to select, but chooses what might be appropriate, like the column of numbers above a SUM function. The user can go with what Excel has chosen, or choose their own cells.
SUM function
In Excel, the average is a statistical function that calculates the mean of a set of numbers. It is determined by summing all the values in a specified range and then dividing that total by the count of the values. The function can be used by entering =AVERAGE(range) in a cell, where "range" refers to the group of cells containing the numbers to be averaged. This provides a quick way to assess central tendency in data analysis.
The COUNTIF function can do that.
It is a function that allows you to count the amount of blank cells in a range. So if you want to count how many cells were in the range from A2 to A20, the function would be as follows: =COUNTBLANK(A2:A20)
It you select the blank cell under a column of numbers or a blank cell at the end of a row of numbers and hit the Autosum button it will enter the SUM function and select the cells above in the column, or to the left in a row. Pressing Alt and the = key will also do the same thing. If you select the column or the row with the numbers and click the button or do Alt and the = key, then it will also do the same.
The most basic function in Excel is SUM() Other functions are AVERAGE, MIN, MAX