Question

tolongg bantu jawab yaaa sama caranya,terimakasihh

Answer 1

Materi : Data dan Statistika

Rumus Quartil, Desil, Persentil

[ Q,D,P ]n = Tb + ( [ Q,D,P ]n - fks )/f( K( [ Q,D,P ]n) ) . pk

Tb = Tepi Bawah [ - 0,5 ] biasanya

fks = frekuensi kumulatif sebelum

f( K( [ Q,D,P ]n) ) = frekuensi kelas quartil,desil, atau persentil

pk = panjang kelas

____________________________/

• K( 40 - 44 ), f = 3 [ 42 ]
• K( 45 - 49 ), f = 4 [ 47 ]
• K( 50 - 54 ), f = 11 [ 52 ]
• K( 55 - 59 ), f = 15 [ 57 ]
• K( 60 - 64 ), f = 7 [ 62 ]

Banyak Data = 40 data

Bagian A

Jumlah Data :

3(42) + 4(47) + 11(52) + 15(57) + 7(62)

= 126 + 188 + 572 + 855 + 434

= 314 + 1.427 + 434

= 748 + 1.427

= 2.175

Maka Mean = 2.175/40 = 54,375

Bagian B

Median ( Q2 )

Q2 = 2/4n = 2/4(40) = X20 => K( 55 - 59 ) [ X19 - 33 ]

Tb = 54,5, pk = [ 55,56,57,58,59 ] = 5

frekuensi kumulatif sebelum = 18 [ 3,4,11 ]

f( K(Q2) ) = 15

---

Q2 = 54,5 + ( 20 - 18 )/15 . 5

Q2 = 54,5 + 2/18 . 5

Q2 = 54,5 + 5/9

Q2 = 54,5 + 0,555..

Q2 = 55,0555..

Bagian C

Modus => K( 55 - 59 ), dengan frekuensi sebanyak 15 data.

Bagian D

Q3 = 3/4n = 3/4(40) = X30 => K( 55 - 59 ) [ X19 - 33 ]

Tb = 54,5, pk = 5, f( K(Q3) ) = 15, fks = 18

---

Q3 = 54,5 + ( 30 - 18 )/15 . 5

Q3 = 54,5 + 12/15 . 5

Q3 = 54,5 + 12/3

Q3 = 54,5 + 4

Q3 = 58,5

Bagian E

D4 = 4/10(40) = X16 => K( 50 - 54 ) [ X8 - 18 ]

Tb = 49,5, pk = 5, fks = 7, f( K(D4) ) = 11

---

D4 = 49,5 + ( 16 - 7 )/11 . 5

D4 = 49,5 + 9/11 . 5

D4 = 49,5 + 45/11

D4 = 49,5 + 4,0909..

D4 = 53,5909..

Bagian F

P65 = 65/100(40) = 13/20(40) = X26 => K( 55 - 50 ) [ X19 - 33 ]

Tb = 54,5, pk = 5, f( K(P65) ) = 15, fks = 18

---

P65 = 54,5 + ( 26 - 18 )/15 . 5

P65 = 54,5 + 8/3

P65 = 54,5 + 2,666..

P65 = 57,1666..

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Semoga bisa membantu

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Answer 2

Ini jawaban nya ya kak
Caranya juga ada dalam sini