A list of numbers is shown
below. Find the mode.
The mode or the modal value is the
most common value in a list of numbers. It’s the number that occurs the
most frequently. To help us work this out, we can
construct a frequency table to find out how many times each number in this list
The first value is eight. Let’s find the total number of
eights that are in this table. Crossing them off as we go through,
we can see that there are a total of three number eights. The next number in the table is the
number six. Crossing these numbers off as we go
through, we can see that there are a total of four number sixes. We then have the number five. In fact, five appears only once in
our table. Similarly, the number 27 also
appears only once. The next number is nine, and that
appears twice. Finally, we have the number four,
which also appears twice.
The number with the highest
frequency is the number six. The mode of our list of numbers
then must be the number six. It’s worth remembering to be really
careful when calculating the mode. The biggest mistake that is made is
people see that the highest frequency is the number four, and they say that the mode
is four. In fact, we’re interested in the
number that the highest frequency corresponds to, which is the number six.