EXAM GUIDE
>JdevntE vonable 7rom geshonts
oints to oueunber
Vanablepe
Categorica Numercal
Cqvaltatve) (Quovnhtah ve)
Nominal DISCRETE
Nomed ateqones wlole numeu ta Uoluts
LOrclinal CoNTINOoUS
Catngon wtth on Cun tüke valit wtlv
inaplie d order
araie
ConhgenC Table
ecend a Aonencull AB Tlal
ttal
2x IoO
2
=0% 6
erteudage a Low total /12 20
2xio0
33.33%
Pencetage c Colomn -fota
x x loe
/2
66.67
, 3
FREQUENCY DISTRIBU7ION 3 0 2
Stem one leaf
display O 2 3 S
tivst dgt is called steui
lustdiit called leaf 2 S S667
Shape of requcuC 7 I8
disnbuhon
of data
Futd 1aR - (n +1)x n no
2/4 vOlves avalible
2 - (n+1)
ds-(n+ 1) x 3/
32 =
O - Symme hicesl mode <medion & meah
Os-2 O- Positively skeuc mode >medhon > mean
4s- Negohel skewed
Mean Medion Mode, Range, 1OR
how wmouy tuere a e
Meons totol of numbeus olvided b no.
Enaple: 1,2, 3, 4, 5 + 2+5 +4 6
w uch is n fe naidelle n+1
Mecdioun s
no.
median is 3
Exmple .2, 3, S In orderc
aYra
most
Mode No tuet appeons
mode 2
Eluupl: 2 , 2, 3, 4, SS
o sualert wnber
kauye Ulfertue bedureu te hgest
Laye eS- 4 =
Etunnple: , 2, 3,1 ,S
IOR: ntergvanh l
equafo
Vange
, Detemna class Interuals
Interu al width hishest
= valuc -
(louwest vale
no. of closses
NOTE:otal of fve queny column mubl
noof values alwouys eqva
roportion or ve)ative {vequency
RF no of vale n eac class
otal o ovalucs
NOTE total off velative fequen Column must aluwauus
be 1.00. Ve total of " column mustaluACUy be
Crdeed Array
Ofronge data in orde rom smallest Ualuc
e orqe st Ualue
mortont Symbols
somple variace
Somple stondard deviotion
X Somple mean
n Somple Size
CV Cbehuenl voriciton
Z 2 scOe
PopulCihon mean
Opopulahon uoriation
opudahon stovndord deuahon
>JdevntE vonable 7rom geshonts
oints to oueunber
Vanablepe
Categorica Numercal
Cqvaltatve) (Quovnhtah ve)
Nominal DISCRETE
Nomed ateqones wlole numeu ta Uoluts
LOrclinal CoNTINOoUS
Catngon wtth on Cun tüke valit wtlv
inaplie d order
araie
ConhgenC Table
ecend a Aonencull AB Tlal
ttal
2x IoO
2
=0% 6
erteudage a Low total /12 20
2xio0
33.33%
Pencetage c Colomn -fota
x x loe
/2
66.67
, 3
FREQUENCY DISTRIBU7ION 3 0 2
Stem one leaf
display O 2 3 S
tivst dgt is called steui
lustdiit called leaf 2 S S667
Shape of requcuC 7 I8
disnbuhon
of data
Futd 1aR - (n +1)x n no
2/4 vOlves avalible
2 - (n+1)
ds-(n+ 1) x 3/
32 =
O - Symme hicesl mode <medion & meah
Os-2 O- Positively skeuc mode >medhon > mean
4s- Negohel skewed
Mean Medion Mode, Range, 1OR
how wmouy tuere a e
Meons totol of numbeus olvided b no.
Enaple: 1,2, 3, 4, 5 + 2+5 +4 6
w uch is n fe naidelle n+1
Mecdioun s
no.
median is 3
Exmple .2, 3, S In orderc
aYra
most
Mode No tuet appeons
mode 2
Eluupl: 2 , 2, 3, 4, SS
o sualert wnber
kauye Ulfertue bedureu te hgest
Laye eS- 4 =
Etunnple: , 2, 3,1 ,S
IOR: ntergvanh l
equafo
Vange
, Detemna class Interuals
Interu al width hishest
= valuc -
(louwest vale
no. of closses
NOTE:otal of fve queny column mubl
noof values alwouys eqva
roportion or ve)ative {vequency
RF no of vale n eac class
otal o ovalucs
NOTE total off velative fequen Column must aluwauus
be 1.00. Ve total of " column mustaluACUy be
Crdeed Array
Ofronge data in orde rom smallest Ualuc
e orqe st Ualue
mortont Symbols
somple variace
Somple stondard deviotion
X Somple mean
n Somple Size
CV Cbehuenl voriciton
Z 2 scOe
PopulCihon mean
Opopulahon uoriation
opudahon stovndord deuahon
