Measures of Center (Guided Notes)
Mean is also sometimes called
 First, calculate the
 Second, determine
 Finally, Divide the
Median is the
.
or
by
of all numbers
numbers there are
to calculate mean
value
 First,
the numbers from
to
 Second,
or
both the lowest and
highest value in the set
 Continue Step 2 until there are either one or two numbers remaining
o If there is one number remaining, the remaining number is
the
o If there are two numbers remaining then
the numbers
and divide by
to calculate the median
Mode is the value that appears the
 First order the numbers from smallest to largest
 Count the number of
of each value
 The
is the value that occurs the most as long as it
occurs
than
 It is possible for a data set to have
Range is a measure of spread
 It is calculated by subtracting the
the
number.
number from