STATISTIKA DESKRIPTIF NITRATTugas Mata Kuliah Statistika Universitas Diponegoro

KELOMPOK 1 Aulia Try AtmojoAulia Surya GemilangDewangga Bagus PDurotun NafisahFitra Al RamadhanHarmon PrayogiNofa D PLarossa NurfikriRiki TristantoSri IsmayantiSakinah Yusuf

GRAFIK KONSENTRASI NITRAT DI PERAIRAN KEPULAUAN KARIMUNJAWA APRIL 2009KonsentrasiStasiun Penelitian

Chart1

0.220.59

0.130.32

0.110.54

0.310.11

0.110.25

0.070.25

0.180.41

0.250.43

0.160.36

0.130.41

0.110.29

0.20.38

0.110.41

Lapisam Dasar

Lapisan Permukaan

Sheet1

Lapisam DasarLapisan Permukaan

10.220.59

20.130.32

30.110.54

40.310.11

50.110.25

60.070.25

70.180.41

80.250.43

90.160.36

100.130.41

110.110.29

120.20.38

130.110.41

UKURAN PEMUSATAN

DASARMean Median Modus = 0.11

StasiunKonsentrasi10.2220.1330.1140.3150.1160.0770.1880.2590.16100.13110.11120.2130.11Jumlah22.09

LAPISAN PERMUKAANMean Median Modus = 0.41

StasiunKonsentrasi10.1120.2530.2540.2950.3260.3670.3880.4190.41100.41110.43120.54130.59Jumlah4.75

UKURAN KERAGAMAN

UKURAN KERAGAMAN1. Standar Deviasi ( s )2. Varian/ragam s23. Range = Maximum - Minimum 4. Jarak antar kuartil = Q3 - Q1

LAPISAN DASARRange = maksimum minimum = 0.31 0.07 = 0.24Q3 = = X42/4= 10,5= (0.2 + 0.22 ) : 2= 0.21Q1 = = X7/2= (0.11 + 0.11) : 2= 0.11

Jarak antar kuartil = Q3 - Q1 = 0.21 0.11 = 0.10

Xi XXi - X

2( Xi - X ) S 2S0.07

0,16-0.090.00810.0259807620.0006750.11-0.050.00250.0144337570.0002080.11-0.050.00250.0144337570.0002080.110.110.01210.0317542650.0010080.110.110.01210.0317542650.0010080.130.130.01690.0375277670.0014080.130.130.01690.0375277670.0014080.160.160.02560.0461880220.0021330.180.180.03240.0519615240.00270.20.20.040.0577350270.0033330.220.220.04840.063508530.0040330.250.250.06250.0721687840.0052080.310.310.09610.0894892920.008008

LAPISAN PERMUKAANRange = maksimum minimum = 0.59 0.11 = 0.48Q3 = = X42/4= 10,5= (0,41 + 0.43) : 2= 0.42Q1 = = X7/2= (0.25 + 0.29) : 2= 0.27

Jarak antar kuartil = Q3 - Q1 = 0.42 0.27 = 0.15

Xi XXi - X

2( Xi - X ) S 2S0.11

0,36-0.250.06250.0721690.0052080.25-0.110.01210.0317540.0010080.250.250.06250.0721690.0052080.290.290.08410.0837160.0070080.320.320.10240.0923760.0085330.360.360.12960.1039230.01080.380.380.14440.1096970.0120330.410.410.16810.1183570.0140080.410.410.16810.1183570.0140080.410.410.16810.1183570.0140080.430.430.18490.124130.0154080.540.540.29160.1558850.02430.590.590.34810.1703180.029008

DISTRIBUSI FREKUENSI ( DASAR )Rata rata = 2.86 / 13 = 0.22

IntevalNilai Tengah (i )Frekuensi ( fi) fi i0.05 0.100.7510.750.11 0.150,1360.780.16 0.200.1830.540.21 0.250.2320.460.26 0.300.28000.31 -0.350.3310.33Jumlah132.86

DISTRIBUSI FREKUENSI ( PERMUKAAN )Rata rata = 4.79 / 13 = 0.368462

IntevalNilai Tengah (i )Frekuensi ( fi) fi i0.11 0.150.1310.130.16 0.200,18000.21 0.250.2320.460.26 0.300.2810.280.31 0.350.3310.330.36 -0.400.3820.760.41 0.450.4341.720.46 -0.500.48000.51 0.550.5310.530.56 0.600.5810.58Jumlah134.79

DIAGRAM LINGKARAN ( DASAR )Kategori

Chart1

1

4

2

1

1

1

1

1

1

Dasar

Sheet1

Dasar

0.071

0.114

0.132

0.161

0.181

0.21

0.221

0.251

0.311

DIAGRAM LINGKARAN

Chart1

1

2

1

1

1

1

3

1

1

1

Kategori

Permukaan

Sheet1

Permukaan

0.111

0.252

0.291

0.321

0.361

0.381

0.413

0.431

0.541

0.591

BOX PLOTLAPISAN PERMUKAAN

StasiunKeteranganNilai10.11Jumlah data13Q10.2720.25Maksimum0.59Q2-Q10.1130.25Minimum0.11Q3-Q20.0440.29Rata-rata0.36538550.32Q10.2760.36Median0.38batas atas0.64570.38Q30.42batas bawah0.04580.41Modus0.4190.41Standar deviasi0.126136batas atas-Q30.225100.41Jarak antar Kuartil0.15Q1-Batas bawah0.225110.43120.54130.59

BOX PLOTLAPISAN DASAR

StasiunKeteranganNilai10.07Jumlah data13Q10.1120.11Maksimum0.31Q2-Q10.0230.11Minimum0.07Q3-Q2040.11Rata-rata0.1650.11Q10.1160.13Median0.1370.13Q30.2180.16Modus0.1190.18Standar deviasi0.068100.2Jarak antar Kuartil0.1110.22120.25130.31