CHEM 140L
Session 7 - Data Analysis in Mathcad
7-2
Statistical Functions in Mathcad
Students are encouraged to review the section “Basic Statistics in Science” found in
Session 03 of this manual.
Mathcad has several built-in functions that are commonly used in statistical calculations.
Some of the more common statistical functions used in science are given below.
Notice
that Mathcad uses lowercase
s
and
v
for population functions (
σ
,
σ
2
), and upper-case
S
and
V
for sample functions (
s
,
s
2
).
Function
Calculates
mean(A, B,
ÿ
)
The mean of all the elements in arrays
A
,
B
,
ÿ
stdev(A, B,
ÿ
)
The population standard deviation of all the
elements in arrays
A
,
B
,
ÿ
var(A, B,
ÿ
)
The population variance of all the elements in
arrays
A
,
B
,
ÿ
Stdev(A, B,
ÿ
)
The sample standard deviation of all the elements
in arrays
A
,
B
,
ÿ
Var(A, B,
ÿ
)
The sample variance of all the elements in arrays
A
,
B
,
ÿ