nguyen ly thong ke kinh te de thi ly thuyet thong ke cuuduongthancong com

Bookbooming

BAI TH[ MfiN LY TH U Y lT THONG K=
(Thcsi gian l&m b i i : SO plttit)

B l thl s 6 : 01
i /LV rHUYST
A: Eien D v ia can dung v4 S via cSu sat cho c ic
ssa:
Co thl dung s6 tuvit d6i fiS so 8*nh hai h$ntmpng gung tofi nhimg khic
va qui m6.
____ 2 -M,. dtrec dung de nftu Ita dfc.trung.efa diy.itfphftn pNfi khi khi d iv sc
co nhiltf Bong bien co tan s6 nhii nhau ho|c xap xi nhau.
.1......2. M, kh6r.9nhay'camvc«lu9ne nh&tgbien d6txui!,lr0fi94lys£
....... 4. Nghiin cini he s6 tuursg quasi khdhg ch! c**
> tM yd i^ cvai tr6 cilia
tCfng tieu 8s£te nguyen nhSh-SS vfi fife ihic t it qua.
....... 5, Phircmy phapbinh pht'dng nho nhSl chinh Si sir
t£ng binh
phueng car. cnSnh lech giCra cic. gii tii thie tli v i cac g ii it? binfyRuin cua lim j
nr.iim r-M miHe. f?|i
........ 6. Do1 'iny iS Ihct di»:n '.6 1'hssng cach thoi gian b&ng nhau mi/c di
binh quin i'neo ;hoi gic i chinh la binn quin cu3 cac s6 binh quin cua timg nhum
hai mac d6,
......... 7. L'.'onr; tsng giam tuyft Ofoi binh quin chinh IS binh quin cua cac fecng
t§no ciam iuyet dot Ii6r ‘’oan .
.........S. COng nhtfsftbinh qudn tnSu dU?c dung i£ cdc iJdng s5 binn quin
chung ty ie :fvso mo: l i i - thC'c nte do cua rnlu dupe dung de udc kft?ng cho :y ie
cub !ui'3 the chung phuong sai cua rr.au durac dung 3e uc: lucng cho phuor.g sai
chung .
M,!a :

a. MOc oo pho bii'n hhSt cua !6’ng the Ihetfmfit tiSu thCfc itfta 06
b. Laong bien dting a vj Sri eninh sife Sionflmdt tip hdp. s6 Ilfu .
c. Luang bien cua don vj dting 6 vf'trr enfhh giDa trong mt* dfty s6‘ lu'^r.g fci4n ,
t. Ca b >/ac.
2. Toe 6a tang t'giam) binh quin I# :
a. Ty $6 giCra iifong tang (giam) tuyet dbinh q u in .
d. Ty s6 giua Itiong tfing (giam) dinh gdc veil mire d6 ky gtfs nhS'S djnh .
c. L i chi ti&u tuang d6i noi len ntiip dk|u ting (giam) dai cien trong
thdi icy
nhd't djnh.
d.. Ca a va c dfeu dung,
3. T6c dd phit Irian ia :
a. S6 Wong d£i dpng thai,
b. Phan inh xu hiring pMit triln cua hi|ti,tt/gng qua thdi gian.
c. L i ch! ti&u tuong dd'i ndi iin nhip ®fu tihig (glam) tS?i t in trong m6i thdi ky
nhlt dinh
d. Caav&6.

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D ai hoc Ngoai thifang


Bookbooming

4. Ngh^^c*cchiM uA»At^«hi«nGtwth< y:

a. Q+jMkn Un ola c*c ufcto*in*« «< Mnh quin cua chung.

b.

.

c.

d. C ia .b v ic .
5. DuSofl brfu
kit qua dU9c ggi li& A Xtg:
a. Ou&nfl h6i qui ty thuylt
b. EKJOng h6i qui thyc nghiim
c. Bucmg tuyi'n Unh.

.

g«2» Mu thifc nguyin nhin v i Uiu thta

d. Duong phi tuyfn tfnh.
6. Sau khi *Ac djnh phutmg trinh hd) qui chi UAu n*o dutt Oiy phin inh cuong
6Q cua m6i Wn hi;
a. H $*iti»ng quin
b. Ty s6 tuong quan.
c.
h6itaui.
d. C ia Vitodiudung.
7. Thci ky diiu tra li :
a, 0$ d*i thdi gian diin ra qufc dNkf tra ..
b. OQdii thdi gian nh&n viiff (Wu-tra di thu thip Id. Wu .
.c. 06 dii thoi gian c6 si/ tichlufvi li/pr.g n'm htyn tuong dang diiu (ra .
d. Ci a , b v i c

e. C i b v i c diu dung.
S. T6nj th* tbdng k i 14 :
a. Tip f%9p CAc hi*n ti»ng kinh Mi x> h6i.
b. Tip hop ca c ddn vj ho$c phin tilf o i bi^t.
c. Tip hop c ic ddn vj hofic hi^nt^ng c i Ltyt cin Oocc quan sit v i phin tich
mftlupng.
d. Ci b v i c.
9. Trong cip ciu sau ciu nio.ii dung:
a, 'his<5 crtuottli sfinrongdS,
c! C

*

d

h

a* tuong
f

a. C a a , b v ie <&»60ng.

10. Khidunfl phuttHJ p W p ti^ A ^ q M to w ^ trt^ p h itlrffo
quyinsdouachta^iM li:

■
thijhinghoMyndMnotiu
— u thy hing hoi kjnjifc.

CuuDuongThanCong.com

.

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Bookbooming

11. Trong cac phi»ng phip chon mlu : r.gSij nhi6n don ihuin . chpn miy moc ,
ch?n phin loti la c6:
a. Chon ngiu nhttr don thuin cho sai s6 nho nhS't.
b. Chon miy m6ccd toi l?i cho sai sd'binh quin chon miu nh6 nhtft.
c. Chpn miy m6e khdog tri ty cho sai s6 binh quin chpn miu nh& nh£t.
d. Chpn phin lop cho sai s6 binh quin ch?n mau nho nhi't.
12. Khi Min hftnh chpn dc don't vio miu nsai cda ting thl chung (hi:
a. Dung phuong sai cua ting thl mlu s i chpn .
J>. Dung khoAngWin thlin d6 udc lupny gin dung c6 d$ l$ch chuin niu ting
thi chung phin phflii chuln.
c. Lily phuong sai nho iihi't trong cic Ian diiu tra duoc .
d. IS’y binh quin cac phuong sai cua cic lin di$u tra tn/dc.
BAl TAP:

BAt 1: C6 tai liiu v£ mi! thi tornng r.hir s:u:
Tin hang

1Ty trong mire tieu thu
: hanq hoi kv o6c(%)
140

' ! 25
; : 25
•10

A
B
IC

ID

Ty le % ting Itfpng hang l(
hci tiiu thu so vdi kv ode I
7.5
M
i 8.0
i
i 10.0
!j
I 15.5
i

a. 108.2%
b. 109.05%
c. 103.27%
d. 102.4%
2. Bii't ling mire Mu thy hing hoi ky nghtin ciru tang 10% so vdi ky gic chi s6
chung v i gia l i :
a. 101.66%
b. 100.87%.
c. 106.52%

d. 107.42%
BAl 2: Tinh hinh san xuflt tai hai x( nghiip d$t trong 6 thang d5u nirn 1996 nhu
sau:
" 1Qwl
Quil
Qui II
Qui II
Ting sin
fepgvil
(1000 mat)
A
B

CuuDuongThanCong.com

310

Ty 1$% v ii
k*i1
91
M

-

Ting san
lupngvai lo?l
1(1000 m*t)
232.5
366.6

/>Dai
hoc Ngoai thiKyng

Ty 1* % vii
lO fil..... ...
93
94


Bookbooming

1. Ty !$ vai lo?i I binh quin chung cho c i 2xi ngf\i$p trong qui I 14:

a. 92.0%
b. 92,2%
c. 82.18%
2. Ty v ii loai II binh quin cho ca 2 xfnghi^p trong qui II14:
a. 93,5%
b. 93.65%
c. 93.6%
3. Ty 14vai loai I binh qu4n chung cho ca 2 xf nghtyp (rang 6 thing 14:
a. 92.9%
b. 92,5%
c. 93,1%
p Ap An tham kh Ao :
2.S
3.0
A: 1.S
4. S
5.S

7. d
8. D
6. 0
2.c
3. d
5. b
B;
l.c
M
8. c
9.c
10. c
6. d , 7. c
11. d
12. d
BAI TAP:
2.
B411: 1. b
BAi 2: 1. b x. =
=92.2%
2. x. =IM ,/I(M ,/x i) = 3.
x.ô [XxA +IM J/IZ f, +I(M i/ *)]ã
bAi thi mOn lv thuyGt th6 ng k£

(Thai gian lam b4i: 90 phut)
06sd’:O2
LYTHW l T ;
A: DlfeN D VAO CAu DUNG VA S VAO CAU SAI CHO CAC CAU DUOl SAY:

1 Phftn t6 c6 khoAng c4ch td khfing chi dupe 4p dyng trong tnMng hpp lupng

bMin UAu thCrc biA'n thi*n Il4n tyc.
Z Nghi4n cOu bMin d6ng cua a6 binh qu4n cho thSy xu huftng phAt tritfn cua
hi$n tugng qua thdi gian.
3 -C6 thi dung«6 tuy^t 66\ i i so sAnh hai hl^n tutpng cung loai nhung khic
nhauvA qui md.
4 P h u w g ph4p binh phuqng nhd nhAt chinh li *y ttfl thtfu ho4 ttfng binh
phuong c *c chAnh l#ch giCra cAc gi4 til h * : vA oAe
trf I* th u y * cua bttn
phy thu$c.

5! H i s6 tuong quan chi cho phAp thiy dupe artng cua m6i Mn hf tuong
quart tuytfn tint).
6. Chl >614 ■£tuOng «8 vi viy tit c i cAc *6 tuong OS diu 14chi t6 .

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Bookbooming

7.'i Trong cdng thifctinh so dan vi cin thiit ffltfipn v&o mau khi mu£nUdc
li/png ty 1$cua tdng th£ chung ngudi ta they phuqng sai cua tiSng th l chung b&ng
phuong sai gan 0,5 nhat trong cic lin d liu tra tntfc.
8.6 Sai s6 binh quin chon mau theo phuong phip chopn nhieu Ian bao gid cung
Idn hdn hoSc blng sai s6 binh quin chpn mlu theo phuong phap chon m$t lin.
e: HAYLUA CHC” CA'JTRA Lftl DUNG GHOTONS CAUh6| SAU:
1.
a.
b.

c.
d.

Noi dung diSu tra la :
Tip hap cic chi tiiu cin thu th$p tai liiu .
Tap b?p cac die dtfmcan dupe thu th$p tii llfu trdn c ic ddri vf di^u tra.
Cac khia qmh cwt^frth^p Mi Ifci'cfo Vtngim chung.
T2it ca cic y tr^ra|ftdung.
2. Qua diiu tra cnlMu tai m$t khu ph6 c6 200 hfi gla dinh ngudi ta thu dupe M.
=1 triiu d6ng thang s6 li#u trfen co y nghTa gi?
a. Sinh quin m£i hd cM tiiu 1 tri^u ddngcho mfilthing
b. Oa so h§ gia dinh i£u dung trin 1 tri^U d6ng 1tiling.
c. 50% h6 gia dinh c6 mifc chi tiiu trin 1 triiu dSng thing tra len va 50% h$ gia
dinh co mUc chi tiiu 1tr.iu trd xudng.
d. Chua the kit Tuin dupe.
3. Sau kt =>cdinh phirdng trinh hoi qui chi tiiu nio phan anh cu'Ong dp cua
moi iien ht-:
a. H i s6 tudng quan
b...Ty.sotUdng quan,
c. He s6' hdi qui.
d. Ca a va b deu dung.
4. Uu diem cua trung vj:

a.
b.
c.
d.

San bing moi chinh l§ch giufa cic lupng bien.
Bilu hign mire do phi bii’n nhi't cua hiin tupng.

Nhay cam vdi si/ biin thiin cua tiiu thifc
Loa\i chU anh iii/ang cua nhOng liipng biin d6t x ui'i.
5. Toe M ting giam binh quin li :
a. Ty s6 giufa lupng ting giam tuy$t d<5i binh quin vdi mire d6 binh quin.
b. Ty sd' giCra iJdng ting giam dinh goc vdi mCrc c. La chi tiiu tunng d6i n6i lin nhip dliu ting giam dai diin trong m6t thdi ky
nhi't djnh.
d. Ca a v i c diu dung.
6. Trong cac ciu sau ciu nio khdng dUng:
a. S6 tuyit d6i phan inh qui m6 kh6lJupng cua hl^n tunng t?i nhung thdi dllm
nhi't djnh.
b. Sfi tuy^t ddi phin inh qui md khdi lupng cua hiin tugng trong m$t dQdiithdi
gian nhSt dinh.
c. S6 tuyit dtfi cho phip di siu phan inh phin tfch die dilm ban ch£l cua hi$n
tuona.
d. C ic iu a v ib .

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Ngoai thu’O’ng


Bookbooming

7. Trong cac ciu dudi d iyciu nio Id tic d$ng cua phudng phip chi s6.
a. 9ilu hi#n Brfn gfrnfl
WfffKlW ill ifflH iy BW UHJI UBlll
b. Bllu hi$n bMin d$ng cot hj^n typng Wnh ti xl hi$i qua eto dja dtfm khic
nhau.

c. Phin tfch m« Mn h* g ift cichi*fi tu?ng.
d. C i a v i b.
a! C ia .b v ilc .
8. Khi tkSn hinh cic yiu ti nio trong c*c yiu ti duN diy.
a. 06 tin cdy cua UdcH/tjng.
b. 06 ding din cua ting thl chung.
c. Phi/ong phip chon mlu .
d. Tit ca cicy& i ti ktf trtn.
chgn Id gii tri don vj hingho^vi.
a. G iica b»u hiAn ty trpngflKte
thy o’w timg m |thing trong ting mte tiiu
thy.
b. Giup cho .i$c chuydn tCfUSpg th*;b#o g&n cAc phin tCfkhfcng c$ng difpc v6i
nhau thinh ting thl bdo 0fiir
tir c0ng If i vdi nhau dut?c.
c. G ii da hing hod khicdiU odfcih hudng tiiuthy.
d. C i a , b v i c.
t- Ca b v i c.
10. Khi xic dinh M, trong m6t tip hla.
a. Xac dinh s i di/ng 6 vj tri chfnh giCfa trong tip hop s i K^u d6
b. Xic djnh xem s i liwng ddn vi trong diy s i li chin hay li .
t Sip xip diy s6 theo thCrty ting din hay giim din.
d. Xic djnh xem tinh M, theo o6ng thtic dan gian hay c6ng thCfc cho dfly s i phin
\6.

11. Sau khi phin ti ta ci.
a. Cicdon vi trong m il ti c i tfnh chit giing nhau

b. Cic don vi trong m il ti c i tfnh chit khic nhau theo tiiu thCfc phin ti
c. C ic don vj trong mdt ti c i tfnh chit giing nhau ho^c gin giing nhau theo
TOu thCfc phin ti
d. C ia v ic .
II: BAITAP:

_C i til liiu v i tinh hinh thywM#n mite hiU chuyfn bing hoicuam O tcU a hing
bind6
CuuDuongThanCong.com

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Bookbooming

MAI hfcnp '

O nil

Q u ill

K hofch
% hoin thinh Thuc t£ doanh % hoan
ni cdoanhlhu
thu (triftu d6ng) thinh k£
klho^ch
(i i iu d6ng)
>J
(Y m)

ho?ch(t,)
(t.)
f
220
99
"
102
Tivi
2>I
180
103.1
98.5
15 I
04u video
110
165.6
150
101
Dan hi-fi
—:---;
—f—
»: T--1. Tyl£% ho5n th&nh k6 hoach binh quin v i mire doanh thu d cita hang trin
trong qui 116:
a. 100,5%
b. 98.8%
c. 100,65%
'd. 101%
2. Ty 1$% hoin thdnn k& hopch binh quin v i mire doanh thu cr cCra hang trfin
trong qui II la :
a. 102.5%

b. 101.8%
c. 101.5%
d. 103%
3. Doanh thu cua cua hirig qui II so vdi qui I b&ng .
a. 101.3%
b. 102%
c. 102.3%
d. 103%
BAl 2:
C6 sd‘ li$u ve tinh hinh san xu£t cua m$t cAng ty nhi/ sau:
Thanq 1
T h in a4 :
Ch! Mu
Thinq 2
i Thina 3
300
320
.135
G ii tri san
liftpng thi/c 16
(triiu d6nq)
104
Ty 14% hoan 102
103
thinh ktf
hoach v i san
luona
S6 cdng nhin 300
304
304

308
ngiydiu
thing
., -- .... ■
1. % hoAn thinh k? hoach bint] quin v j g ii tri si n It/qpg a cdng ty tr6n trong
q u flli.
a. 103,5%
.b. 103,02%
c. 102.5%

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/>Dai hoc Ngoai
thirong

!


Bookbooming

d. 101,02%
2. T6c dd phit triln cua nfing suit lao d$ng binh quin mso vdi tiling 1li.
a. 112.50%
b. 105.35%
c. 110.20%
p/p

A: 1 .0
5.0

B: 1. b
6. d

2.0
6. S
2.c
7. e

3. d
a.d

M tham khAo
3. s
7. S
4. d
9. e

10. c

4.D
6.0
5. c
11.c

BAl THI MfiN LV THUY6T THONG K£
(Thdi gian lim bdi: 90 phut)
0Lf TWY&T:
A: PI^N PVAO CAU DONG VA S VAOCAU SAI CHO CAC CAU DLfOl DAY:
1. PhSn ti c6 khoang cich ti ch! duoc ip dyng trong tn/bng hop lifting bi#fn tiiu

thC/c biin thiin liin tuc.
2 .Cd thl dung s6' trung binh de so sinh hai hi$n tu^ng cung loai nhi/ng khic
nhau v i qui mfi.
3 M, san b&ng bii tri/ c ic chinh l$ch v i lifting trong dfiy s6 .
4, H i s6 tuong quan tuyln tfnh giufa hai tiiu th(fc khdng ch? cho phip thly dupe
cL/ong dd'cua mdi liir. hi tuong quan tuyln tfnh
5 .Khi nghiin cCrtj th6'ng ki cin vin dyng kit hpp g ii tri tuy^t t<5i cue 1% ting
giam iiin hoin v i dinh g6c.
6 Chi stf ting hap khdi luong san phi'm li chi tiiu vira mang tfnh ting hgp visa
mang tfnh phin tich .
1 .Nghiin cifu chi s6 ting hop khing cho phip thly duoc biin ddng cua tCmg
phin tCr .don vj c i bi$t cua hiin tuong phifc t?p.
SQ-.Trong cdng thircLf tfnh s i don vj din thMit d l chon vio m iu khi mu6n Udc
lupng ty 1$ cua lin g th l chung ngudi ta khdng thay ty li cua ting th l chung bing
ty
I6n nhi't trong c ic lin diiu tra truucs.

9 T6c dd ting giim binh quin chinh li binh quin cua cictdcd^Unggtim Kin
hoin .Oung hay sai ? tyi sad?

10 ^ K h d n g nh*y cam vdi 9) thay dii ciia cic lupng bUn tfdt xufttrang diy
%6 .dung hay sai ? tfl sao?.

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Bookbooming

B; HAY LUA CHON CAu TRA i O\ OUNG CHO T(JNG CAU HOI SAU:

1. Tong the th6ng ke IS :
a. Tip hap die hiin ttrgng kinh te xa h$i din nghiin dru .
b. TSp hap die don vj hoSc phin tCfc i bi$t.
£. Tin hap cic dan vi ho£c hifen tiffing ca bi$t can difdc quan sit va phin tfch
m it liffing.
d. C a a vie .
2. K»a. Tim quan trong cua timg b6 ph$n trong ting the.
b. ty trong cOa iimg bd phin trong ting tM l.
-€. Tim quan tipng cua toan b& long th i trong nghiin dru thing ke .
d. Ca a v i b
e. Caa ,b yic.
3. Nhuoc diim cua M# li.
a. San b&ng bu tri/ chinh l$ch giiia c ic tuong bi£n .
b. Chiu anh turong cua cic lupng biin d$t x u it.
c. Kim nhay bin vdi sir biin thiin cua tiiu thifc.
d. Chi tinh vdi ting thi It don v j.
e. C acvid .
4. Duong bi£u dien m ii liin h i Q'Cra tiiu thifc nguyen nhin va tiiu thifc k it qua
khdng duac got ti dudng.
a. Duong h ii qui ly thuyi't.
b. DiAing h6i qui thi/c nghiim .
c. Duong tuyin tinh.
d. BuOng phi tuyin Unh
e. Ca a , b va d.
f. Ca a . c va d.
5. Trong nhCmg chi tiiu dudi diy chi tiiu nio phan anh li/gng ting (giam) tuy$t
d6’i .

a. Nim 1994 v6'n luu d6ng cua c6ng ty bing 150% so vdi nim 1992.
b. Nim 1994 v6'n luu ddng cua cfing ty ting 50% so vdi nim 1992.
c .. Binh quin m6i nim v6n luu J6ng cua cfing ty ting 24%.
d. Nim 1994 v6n luu ding cua cfing ty ting 200 triiu so vdi nim 1992
e. Cacvad.
1LM TAP; CHQNPAP 50 PUNS V
BAM:
Nim
1992
1993
1994
1995
1996
1997

CuuDuongThanCong.com

t

A

—

I
!
I

-

TlHH;

I G ii tri tin lo^nfl (»} dfino)
1.5
M
2,0
2,5
3.2
.3,0
.
..

/>Dai hoc Ngoai thireyng

1t r

‘

...


Bookbooming

Bing phUOng ph6p ngoai suy him xu thd tuyfe’n tinh:
1. Du doan gia tri san li/ong cua xi nghi^p nam 1998;

a.
b.
o.
2.
a.

b.
c.

3,66 tyddng
3 ,7 6 --3,14 --Di/ doan gia trj san Itfpng ctla xi nghtyp nflm 1999.
4.2 tfddng
4,02 ---4,1 ----

bAi 2: C6 tdi liftu ve m6t thj tn/dng nhu sau:
San phSm

T6ng«hi pWain xiijft ky
nghiin cflu ftnftu ddrig)

A
B
C

370
400
300

Ty I* % tang giimgte
thinh don v( sin phim
so vdi ky o<5c
-6.5
-4.0
3.5

a. 95.54%

b. 97,07%
c. 98.52%
d.. 97.56%
a/.ao7«o
2. B iil tong chi phi san xud't ky gi'c Id S50'tri$u tinh chi stf chung vS khd'i luting
san phd’m:
116,03%
b. 120.86%
c. 117.86%
d. 116,50%
BAi JH I MON LV THUye'T th 6 n g

k£

(Thdi gian Idm b i i : 90 phut)
0 4 sir. Q3

L? THUYgT;

& Blfebi e-VAa.CAU9Utg.YA, §.yAQ CAuMLfiUtt cAc.cAu owOlbAy;
1 . T in s6 Uchluy cbQ biit cac adUiyng cic don vj c6 lupng bKn nhd hen hofc
I6n hon m-Hlutpng bi*n eg th#fiifctf6.

2 .H* sfiiwln lhi«nl(hM rch0pto0#«nh s^/btfn thiAn cua hai lutmg bi£n khicloai tkmg kftHrfic chi W uW flfrbtfrt thi*nkWc cho pMp Iftm dKu 06.
3 ,N#u tdtrung binh k5n hon A* 1Wnti>tn vjfc6 kflnQ W*n I6n sft chitfm 0a
sdtrongtSng the.

At

CuuDuongThanCong.com

/>Dai hoc Ngoai thirong


Bookbooming

4 Khi h i s6 (Mng quan Idn hon 0,9 thi mfili liSn he giua hai hian tupng dang
lighien cCru li m il liin h6 hoin toin ch?t ch i .
5. Loai bo yi'u 16' nglu nhifin ra khdl dSy s i thdi gian khdng phai !& nhi£m vu
cua ciic phuong phip biiu hiin bilu hi$n xu hudng phit trifin qua thdi gian.
6, Du (Join dua trin lupng ting giim tuy$t dH binh quin khdng dupe thi/c hifen
vdi d3y s6 thdi gian cung tflng ho$c giim vdi tic 7 Tam quan trpng cua timg m$t hing li m$t ylu td" d l xac dinh trpng so trong
cong thifc tinh chi s i gia c& binh quin.
8 Oilu tra chon m iu khdng ph& li tn/ong hpp v$n dyng qui iu$t s6 Idn .
9 Khi chon mau d l u6c lupng ty 16ngudi ta khdng chon tfch p.q gin 0.5 nhit
trong cac Ian. Oung hay sai ? tai sao?

10.Chi s i g ii Ca cCia mmaog tinh phin t!ch. Buns Kay spi ? tai sao?

B: HAY LUA CHON CAU TRA l6 l OpttG NHAt CHO TUNG CAU H6l SAU;

1. The nio li mdt tong :h$ th6ng k6.
a. Tordng OHKTQD.
b. Tap the Idp cac ban dang hoc .
c. La hien tuong kinh ti' xa hdi s6 Idn g6m nhung don vi (hoSc phin tuf) ca b iit
can dupe quan sit v i nghiin ciru .
d. Ca a , b v i c d<u dur>g.
2. H i thing chi tiiu khdng phan in h .

a. C ic khia c$nh quan trong nhi't cua ting th$ chung .
b. Cac khfa canh quan trong nhit cua cicdon vi ting th£.
c. M i'i liin h i cua tding th l vdi c ic don vj liin quan.
d. Ca a v i c.
3. Trong nhung chi tiiu do d$ biin thiin dudi d iy chi tiiu nio cho phep so sanh
cli'n thiin cua nhung hiin tupng khic nhau.
a. H i sd-biin thiin.
b. Phuong sai.
c. Khoang biln thiin.
d. 06 l$ph chuln.
e. Ciav ad.
4. Chpn ciu tra Idi dung trong c ic ciu sau:
a. S6 binh quin bilu hiin mire dd phi biln nhi't cua tlng-ihl theo mnio dd.
b. S i binh quin phan inh mire dd dai di$n cua ting the.
c. C i hai ciu trin d lu dung.
d. Ca hai ciu trin d lu sai.

if

CuuDuongThanCong.com

/>
Dai hoc Ngoai thirorig


Bookbooming

Nflm

1989

Dt(tri6u

300

11990

320

1991

I11992

1993

1994

1995

'

250

1420

500

300

310

|

«*n&)
T6c d^phit Win binh qufln trong thdi gian 66 Mi.
a. V1-033
b. 7.VW33
c. Khdng n4n tfnh.
II: BAl TAP:

Tu& cua 50 slnh vttn t?i chuic khoA 28 chuy*n nghinh Mi chinh nhi/ sau:
?0
I 36
26 4 3 0
25
I 33
24
I 35
27
I 22

22
21
30
?o
25
a.
b.
c.

2.
a.
b.
c.

24
37
29
28
25

21
23
37
36
35

29
28
23
30
3?

30
28
32
37
22

32

38
32
33
35

39
24
37
22
20

25
•27
30
25
38

-D
7.3,5
2 8 ,5
So s£nh t u $ (rung binh vdi tu«5i Irung vj ta thS'y:
T uii (rung binh nho h en turfi (rung vj.
Tudi trung binh b an g tutfi trung vj.
Turfi truna binh Idn hdn turfi truna vi.

BAl2:
3&i pliani1

A
B

1.
a.
b.
c.
2.
a.
b.

CuuDuongThanCong.com

Chi phf sin xuit (tri$u

Ty l$ % tang sin hxpng
quf II so v6i qnf I

Qui I
Qufll
400
+12
420
♦15
700
1600
Chi so ttng hop v6 san mtpng cua Paach* bing:
113.86%
113.5%
112.86%
Chi s£ t6ng hop vi gii thdnh cua tarpayres bSng.
98.665

88,37%
c. 99,24%

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