TEDENSI SENTRAL

8/16/2019 TEDENSI SENTRAL

1/4

TEDENSI SENTRAL

1.UNGROUP DATA.

- MEAN :

1. ARITMATIK MAEN.

2. WEIGTED MAEN.

1−mean x

= εx

n−observasi

Mean´ x=

εx

n =

13+14+15+16+175

´ x=

70

5=14→ ´ x=14

UTS + UAS

65,9 + 71,2

´ x= ´ x 1 (a )+´ x2(a)

a+b+c ´ x=

65,9 (1 )+71,2(2)1+2

´ x=65,9+142,4

3 ¿69,4

MEDIAN : NILAI TENGA

M! "n−1→ jumlahobservasi

2→6

1. U#$% !a%a 12 1& 1' 15 16

1 2 & ' 5

2. M! "n+12

=n+12

=5+12

=3

6+12

=3,5 x

´ x=εx

n=6+5+7+8+70

5=96

5 ´ x=19,2

5 67

( 7)

1 2 & ' 5

M! "

n+12 =

5+12 =3−7


2/4

MODUS :15121314151614

12 13 14 15 15 16 1 2 3 4 5 6

14+152

=14,5

∑X

160,170,165,155,180,150,153,157,162,169,170,180,190,159,161,

188,158,166,166,166

Conto n!"#! $% Mn 'o()* '&(!#n% Mn+

´ x=εx

n =160+170+165+155+180+150+153+157+162+169+170+180+190+159+161+188+158

20

¿3325

20=166,2

M&(!#n :

n+12

=20+12

=10,5

¿165+166

2=165,5

Mo()* :

166


3/4

U-URAN NILAI LETA-

-)#.t!" : (! /#! .#t# (#n 4 /#!#n #n *#'#+

k 2:nilaimedian

RUMUS -UARTI

K 1=

K 1

(n+1 )

4

K 2=

K 2

( n+1 )

4

K 3=

K 3(n+1)

4

E+ 5,6,7,8,9,11,12

&.## n!"#! k 1

, k 2

, k 3

##/

A k 1(n+1)

4=1(8+1)

4=9

4=2,5

k 1 /!"#n#n n!"#!

2 6 60,5 7% 6 0,52,5 6,5

k 2(n+1)4

=2(8+1)4

= 184=4 ,54+0,5

k 2 /!"#n#n n!"#!

4 8 80,6 9%8 0,6

8,6


4/4

C k 3(n+1)

4=2(8+1)

4=27

4=¿ 6,75+6 0,7

k 3 /!"#n#n n!"#!

6 10 100,75 1110 0,75

TEDENSI SENTRAL

Documents

Transcript of TEDENSI SENTRAL