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Measurement - The process of using
dimensions, quantity, or capacity by comparison with a standard in
order to mark off, apportion, layout, or establish dimensions.
Statistics - Collection of methods for
planning experiments, obtaining data, organizing, summarizing,
presenting, analyzing, interpreting, and drawing conclusions
based on data.
- Inches / Millimeter Conversions
2 in x 25.4 = 51mm
.75 x 25.4 = 19mm
75mm ÷ 25.4 = 2.95 in
10mm ÷ 25.4 = .39 in
- Dial Caliper Measurement
- Outside Diameter
- Inside Dimeter
- Depth Gauge
- Step Dimensions
 
1.
The
mean
of the data set is its average.
To find
the mean you add up all the numbers and divide the answer by
how many numbers you have.
Add
(1, 2, 3, 4, 5)
on the
calculator and then divide the answer by 5.
2. The
mode is the
number that appears the most often
if you are working with only one variable.
We are working with one variable, a
set of numbers. To show how to figure out the mode, we need
to change our sample set because each number only appears
once in it.
Example: (2, 4,
4,
6, 8, 10).
4
appears
more than any other number in this set so 4
is the
mode of the set.
3.
The
median is the
number which is in the exact middle of the data set.
Example:
(1, 2, 3, 4, 5),
3 is the number which is exactly in the middle, so 3 is the
median of this set.
4.
The
range of the
data set is
the difference
between the largest and smallest number in the set.
To find
the range,
you simply
subtract the smallest number from the largest number
in the set.
In our sample data set the
largest number
is 5 and
the
smallest number is 1.
Example: (1, 2, 3,
4, 5)
5 - 1 = 4
The range of this set is 4.
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