The mode is the value that appears most often in your data. Paste your numbers into the browser-based average calculator and it reports the mode along with the mean, median and range, all computed locally so nothing is uploaded.
To find the mode, you count how many times each value occurs and pick the one that occurs the most. In the set 2, 4, 4, 6, 9 the mode is 4 because it appears twice while everything else appears once. A data set can have more than one mode if several values tie for the highest count, and it can have no mode at all if every value is unique.
The mode is the only one of the three common averages that works for non-numeric categories, such as the most common shoe size sold or the most frequent survey answer. For numeric data it highlights the most typical value at a glance. The average calculator counts the frequencies for you and shows the mode instantly, running entirely in your browser.
Yes. If two or more values tie for the highest frequency, the set has multiple modes.
Then the set has no mode, because every value occurs exactly once.
No. The frequencies are counted in your browser and nothing is transmitted.