QRM 2
Samenvatting
Ordinal, nominal, interval op Ratio:
B
Continuous, discrete
categorical.
or
5.
Mean: Quantiles:
quantile Q P25 X (0,25 (n +1))
First
sample. =
=
third quartile ab
p75=x(0,75 (n+11)
=
population:
Box plots:
Standard deviation:
Sample:
population. Te
Median:
odd: Geometric
x
n mean:
n even:
G MXz....
=
Xn
↳Range
inde trimmed
↳ mean but
mean
2
skipping highest and
lowest valkes.
Variance:
x)
1, standard deviation:
Se =
(Xi -
S U5
=
, Inter Coefficient of
quaktile Range variation:
cu
=
IQR Q3 Q
=
-
Skewness:
Combinatie/permutatie:
skewed Left skewed
Right
Venn
diagram: P(A(B)
B
=
PCB(A)
B
=
->
Bayes
Binomial distribution:
(x)
E
njCE(,xi)
=
=
Variance -
Var (x)
njt(1-j)
=
(=Var ( Xi)
pCXin, s)
PDF
- 5.Cl-j)
x):
CDF -F(X: n,j) P(k:n,j)
=
, Venn
diagram independent or
mutually
exclusive
Contingency table: Independento r dependent:
Independent:p(A1B) p(A)
= fok p(B) >o
p(AnB) p(A) p(BL
5 on: =
Wp() (p(B)
24) pch(B)
7
=
= =
PCB)
↳
pctnB) pcal. p(B)
=
= A and B
ake independent.
quiz onderwerpen:binomial distributions, measures spread
for and
centrality
conditional
probability and expected values.
Measures for
centuality:
-
mean
-
Median
-Mode
Midkange
-
-
Geometaic mean
-
trimmed mean
Measures fok spread:
Range
-
-
Sample variance
sample standard
-
deviation
-
coefficient of
variation
-
Mean absolute
deviation
Rinomial
I
distribution:
x)
x
p(x
n
-
5)
x!*(
=
-
-
Voorbeeld b
, conditional
probability:
↳ denoted
PCAl B)
p(AB) B)
=
for pcBs
General law of
multiplication:p(AnB) p(A/B)p(B)
=
Expected values:
the of
sum
measure
all
of center.
X-values
weighted by their respective probabilities. It is a
the formula:
E(X) p =
[x,p(xi)
=
i1
=
the because
expected
different
value
probabilities.
is the
weighted
Because it is
average outcomes can have
E(x)
average, usually call
an we
and the
use
symbol Mr.
Samenvatting
Ordinal, nominal, interval op Ratio:
B
Continuous, discrete
categorical.
or
5.
Mean: Quantiles:
quantile Q P25 X (0,25 (n +1))
First
sample. =
=
third quartile ab
p75=x(0,75 (n+11)
=
population:
Box plots:
Standard deviation:
Sample:
population. Te
Median:
odd: Geometric
x
n mean:
n even:
G MXz....
=
Xn
↳Range
inde trimmed
↳ mean but
mean
2
skipping highest and
lowest valkes.
Variance:
x)
1, standard deviation:
Se =
(Xi -
S U5
=
, Inter Coefficient of
quaktile Range variation:
cu
=
IQR Q3 Q
=
-
Skewness:
Combinatie/permutatie:
skewed Left skewed
Right
Venn
diagram: P(A(B)
B
=
PCB(A)
B
=
->
Bayes
Binomial distribution:
(x)
E
njCE(,xi)
=
=
Variance -
Var (x)
njt(1-j)
=
(=Var ( Xi)
pCXin, s)
- 5.Cl-j)
x):
CDF -F(X: n,j) P(k:n,j)
=
, Venn
diagram independent or
mutually
exclusive
Contingency table: Independento r dependent:
Independent:p(A1B) p(A)
= fok p(B) >o
p(AnB) p(A) p(BL
5 on: =
Wp() (p(B)
24) pch(B)
7
=
= =
PCB)
↳
pctnB) pcal. p(B)
=
= A and B
ake independent.
quiz onderwerpen:binomial distributions, measures spread
for and
centrality
conditional
probability and expected values.
Measures for
centuality:
-
mean
-
Median
-Mode
Midkange
-
-
Geometaic mean
-
trimmed mean
Measures fok spread:
Range
-
-
Sample variance
sample standard
-
deviation
-
coefficient of
variation
-
Mean absolute
deviation
Rinomial
I
distribution:
x)
x
p(x
n
-
5)
x!*(
=
-
-
Voorbeeld b
, conditional
probability:
↳ denoted
PCAl B)
p(AB) B)
=
for pcBs
General law of
multiplication:p(AnB) p(A/B)p(B)
=
Expected values:
the of
sum
measure
all
of center.
X-values
weighted by their respective probabilities. It is a
the formula:
E(X) p =
[x,p(xi)
=
i1
=
the because
expected
different
value
probabilities.
is the
weighted
Because it is
average outcomes can have
E(x)
average, usually call
an we
and the
use
symbol Mr.
