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welcome to math with mr. J in this video
I'm going to cover how to find the range
of a data set and the range is the
distance between the lowest valued
number and the highest valued number and
we have two examples that we're going to
go through together in order to get this
down so let's jump right in to number
one so for number one we have a data set
that is out of order so the first thing
we want to do is put it in order from
least to greatest
that's going to help organize us and
also make it much easier to calculate
range once we get to that point so the
first number the lowest valued number
within that set is 2 so I put my 2 then
we have two threes and I'm crossing
those numbers off as I go along that way
I don't miss anything and I don't count
anything twice then we have a five a
seven and eight two nines and lastly a
10 so now we are ready to calculate
range and we do that by finding the
difference between the highest and
lowest values in the set that will give
us our range or distance between our
highest number and lowest number in
value so our highest here is 10 and our
lowest is two so we would do ten minus
two that gives us eight and that is our
range so our range equals eight all
right on to number two here again this
data set is not in order so let's put it
in order from least to greatest and our
least valued number here is 73
then we have an 82 83 85 87 to 90s and
then in 92 and lastly 96 so we take the
difference between the highest and low
lowest values in that set in order to
get the ring so our highest is 96 and
our lowest is 73 so we need to do 96
minus 73 and that will give us our range
or distance between the highest and
lowest values in that set
so 96 minus 73 equals 23 so our range is
23 so there you have it there's how you
find the range of a data set hopefully
that helped thanks so much for watching
until next time peace
