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tugas 1

3 5 9 13

8 12 15 14

14 7 11 13

10 13 15 20

range max-min 19

banyak kelas 1 + 3,3 log n 5.29

lebar kelas r/k 3.59182 3.

tabel ukuran besar butir !asir

inter"al kelas tally #rekuensi

3-. $$ 2

.7-10.3 $$$$ 4

10.4-14 $$$$$ $$$ 8

14.1-17.7 $$$ 3

17.8-21.4 $$$ 3

20

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 %arak sesar kesingka!an batubara 100 110 120

nilai kalori batu bara 5000 5005 5400

no x y x y xy

1 100 5000 -45.25 -538.125 &&&2 110 5005 -35.25 -533.125 &&&

3 120 5400 -25.25 -138.125 &&&

4 125 500 -20.25 1.875 &&&

5 10 500 14.375 1.875 &&&

170 5800 24.375 21.875 &&&

7 180 5900 34.375 31.875 &&&

8 200 000 54.375 41.875 &&&

rata2 145.25 5538.125 0 0 &&&

rumus men'ari korelasi nilai

atau

'orrel (array1,array2)

!enyelesaian 'orrel (array1,array2) &&&

&&&

(∑xy)/√((∑x2 )(∑y2 ))

(*xy)/((*x2 )(*y2 ))

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125 10 170 180 200

500 500 5800 5900 000

x2 y2

&&& 289578.51525&&& 284222.2525

&&& 19078.51525

&&& 3828.51525

&&& 3828.51525

&&& 8578.51525

&&& 130953.51525

&&& 213328.51525

9371.875 101339.875

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(1+i))+(45,8/(1+i))) 0