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PRESENTASI MATEMATIKA 
NAMA KELOMPOK : 
-ANISA EKA PUTRI K 
-AZIS MUHAMMAD IHSAN 
-DIKA GARNIDHA 
-GHIFAR FAISAL 
-MOCH. FAZAR SANJAYA
Berikut adalah data yang telah kami peroleh dari observasi 
Nama Tinggi Badan(cm) 
Alfa Andeka Aerlangga 160 
Andi Setiawan 173 
Andreas Rizki Rizaldi 160 
Arif Setya Permana 160 
Cecep Solehudin 158 
Cepy Septiahadi 163 
Chandra Khoerudin 160 
Chepy Trisnandar 162 
Dinda Prastiwi 153 
Dwiki Pratama Suherman 169 
Erry Nur Azhari 160 
Gita Cahya Aulia 157 
Hamim Yusuf 160 
Hamzah Ashari 160 
Harry Sandy 153 
Hilman Fajri Fajriansyah 161 
Ilham Sidiq 162 
Irfan Ahmad Fadhil 178 
Kharismauli Cindi Cenora BR 163 
Lalan Maulana Yusuf 165 
Leni Yuniar 160 
Mochamaf Fanny Luthfiana 168 
Mochammad Rofiq Sofyan 159 
Muhamad Rifki 165 
Muhammad Azka Ramadhan 169 
Muhammad Rizky Adrian 172 
Muhammad Sakhin Aliyyin 165 
Rafly Ramadhan 180 
Raka Bagus Hartanto 165 
Ramdan Rohadiat 167 
Reza Lesmana Budiman 162 
Septhi Tsaltsah Rosulani 156 
Silmi Farhah Fauziah 155 
Syahrul Nizam 162 
Teti Hanira 153 
Yongki Agustin 175 
Yusi Ridwan Firdaus 160 
Zineda Zidan 167
kami menyusun kembali data diatas menjadi data tunggal secara berurut dari yang 
datum terendah ke yang teratas 
153 153 153 155 156 157 158 159 160 160 160 
160 160 160 160 160 160 161 162 162 162 162 
163 163 165 165 165 165 167 167 168 169 169 
172 173 175 178 180 
•Setelah data diurutkan, maka tahap selanjutnya adalah menentukan jangkauan data (J). 
J=datum maksimum – datum minimun 
J=180-153 
J=27 
•Setelah diketahui jangkauan datanya, selanjutnya menentukan kelas interval (K). 
K = 1 + 3,3 log n 
K = 1 + 3,3 log 38 
K = 1 + 3,3 . 1,57 
K = 1 + 5,22 = 6,22 ~ 7 (dibulatkan ke atas) 
Keterangan : n = ukuran data, K = bilangan bulat
• Menyusun tabel dari data yang diperoleh 
Tinggi 
Badan 
f xi Batas 
bawah 
Bata 
s 
atas 
Tepi 
bawah 
Tepi 
atas 
153 – 157 6 155 153 157 152,5 157,5 
158 – 162 16 160 158 162 157,5 162,5 
163 – 167 8 165 163 167 162,5 167,5 
168 – 172 4 170 168 172 167,5 168,5 
173 – 177 3 175 173 177 168,5 177,5 
178 - 182 1 180 178 182 178,5 182,5 
Jumlah 38 
• Histogram dan poligon frekuensi dari tabel diatas yaitu sebagai berikut :
2.2 Menentukan rata-rata hitung (Mean) 
Tinggi Badan fi xi di = xi – xs fi.di 
153 – 157 6 155 -5 -30 
158 – 162 16 160xs 0 0 
163 – 167 8 165 5 40 
168 – 172 4 170 10 40 
173 – 177 3 175 15 45 
178 – 182 1 180 20 20 
Jumlah 38 115
2.3 Menentukan Median 
Tinggi Badan fi fk<ta 
153 – 157 6 6 
158 – 162 16 22 
163 – 167 8 30 
168 – 172 4 34 
173 – 177 3 37 
178 – 182 1 38 
Jumlah 38
2.4 Menentukan Modus 
Tinggi Badan fi fk<ta 
153 – 157 6 6 
158 – 162 16 22 
163 – 167 8 30 
168 – 172 4 34 
173 – 177 3 37 
178 – 182 1 38 
Jumlah 38
2.5 Menentukan Kuartil 
Tinggi 
Badan 
fi fk<ta 
153 – 157 6 6 
158 – 162 16 22 
163 – 167 8 30 
168 – 172 4 34 
173 – 177 3 37 
178 – 182 1 38 
Jumlah 38
Tinggi 
Badan 
fi fk<ta 
153 – 157 6 6 
158 – 162 16 22 
163 – 167 8 30 
168 – 172 4 34 
173 – 177 3 37 
178 – 182 1 38 
Jumlah 38
Tinggi 
Badan 
fi fk<ta 
153 – 157 6 6 
158 – 162 16 22 
163 – 167 8 30 
168 – 172 4 34 
173 – 177 3 37 
178 – 182 1 38 
Jumlah 38 
Jadi, dari operasi bilangan diatas diperoleh 
Q1 = 158,59 
Q2 = 160,2 
Q3 = 166,56
2.6 Menentukan Jangkauan dan Simpangan Kuartil
2.7 Simpangan Rata-rata, ragam dan simpangan baku
2.8 Menentukan Koefisien Variasi ( KV) 
2.9 Menentukan Ukuran Kemiringan Kurva (SK)

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Presentasi MTK Menentukan (Jangkauan , Kelas interval , Histrogam , Polygon , Mean , Median , Modus , Kuartil , Simpangan Kuartil , Simpangan Rata - Rata , Ragam , Simpangan Baku , Koefesien Variasi , Kemiringan Kurva )

  • 1. PRESENTASI MATEMATIKA NAMA KELOMPOK : -ANISA EKA PUTRI K -AZIS MUHAMMAD IHSAN -DIKA GARNIDHA -GHIFAR FAISAL -MOCH. FAZAR SANJAYA
  • 2. Berikut adalah data yang telah kami peroleh dari observasi Nama Tinggi Badan(cm) Alfa Andeka Aerlangga 160 Andi Setiawan 173 Andreas Rizki Rizaldi 160 Arif Setya Permana 160 Cecep Solehudin 158 Cepy Septiahadi 163 Chandra Khoerudin 160 Chepy Trisnandar 162 Dinda Prastiwi 153 Dwiki Pratama Suherman 169 Erry Nur Azhari 160 Gita Cahya Aulia 157 Hamim Yusuf 160 Hamzah Ashari 160 Harry Sandy 153 Hilman Fajri Fajriansyah 161 Ilham Sidiq 162 Irfan Ahmad Fadhil 178 Kharismauli Cindi Cenora BR 163 Lalan Maulana Yusuf 165 Leni Yuniar 160 Mochamaf Fanny Luthfiana 168 Mochammad Rofiq Sofyan 159 Muhamad Rifki 165 Muhammad Azka Ramadhan 169 Muhammad Rizky Adrian 172 Muhammad Sakhin Aliyyin 165 Rafly Ramadhan 180 Raka Bagus Hartanto 165 Ramdan Rohadiat 167 Reza Lesmana Budiman 162 Septhi Tsaltsah Rosulani 156 Silmi Farhah Fauziah 155 Syahrul Nizam 162 Teti Hanira 153 Yongki Agustin 175 Yusi Ridwan Firdaus 160 Zineda Zidan 167
  • 3. kami menyusun kembali data diatas menjadi data tunggal secara berurut dari yang datum terendah ke yang teratas 153 153 153 155 156 157 158 159 160 160 160 160 160 160 160 160 160 161 162 162 162 162 163 163 165 165 165 165 167 167 168 169 169 172 173 175 178 180 •Setelah data diurutkan, maka tahap selanjutnya adalah menentukan jangkauan data (J). J=datum maksimum – datum minimun J=180-153 J=27 •Setelah diketahui jangkauan datanya, selanjutnya menentukan kelas interval (K). K = 1 + 3,3 log n K = 1 + 3,3 log 38 K = 1 + 3,3 . 1,57 K = 1 + 5,22 = 6,22 ~ 7 (dibulatkan ke atas) Keterangan : n = ukuran data, K = bilangan bulat
  • 4. • Menyusun tabel dari data yang diperoleh Tinggi Badan f xi Batas bawah Bata s atas Tepi bawah Tepi atas 153 – 157 6 155 153 157 152,5 157,5 158 – 162 16 160 158 162 157,5 162,5 163 – 167 8 165 163 167 162,5 167,5 168 – 172 4 170 168 172 167,5 168,5 173 – 177 3 175 173 177 168,5 177,5 178 - 182 1 180 178 182 178,5 182,5 Jumlah 38 • Histogram dan poligon frekuensi dari tabel diatas yaitu sebagai berikut :
  • 5. 2.2 Menentukan rata-rata hitung (Mean) Tinggi Badan fi xi di = xi – xs fi.di 153 – 157 6 155 -5 -30 158 – 162 16 160xs 0 0 163 – 167 8 165 5 40 168 – 172 4 170 10 40 173 – 177 3 175 15 45 178 – 182 1 180 20 20 Jumlah 38 115
  • 6. 2.3 Menentukan Median Tinggi Badan fi fk<ta 153 – 157 6 6 158 – 162 16 22 163 – 167 8 30 168 – 172 4 34 173 – 177 3 37 178 – 182 1 38 Jumlah 38
  • 7. 2.4 Menentukan Modus Tinggi Badan fi fk<ta 153 – 157 6 6 158 – 162 16 22 163 – 167 8 30 168 – 172 4 34 173 – 177 3 37 178 – 182 1 38 Jumlah 38
  • 8. 2.5 Menentukan Kuartil Tinggi Badan fi fk<ta 153 – 157 6 6 158 – 162 16 22 163 – 167 8 30 168 – 172 4 34 173 – 177 3 37 178 – 182 1 38 Jumlah 38
  • 9. Tinggi Badan fi fk<ta 153 – 157 6 6 158 – 162 16 22 163 – 167 8 30 168 – 172 4 34 173 – 177 3 37 178 – 182 1 38 Jumlah 38
  • 10. Tinggi Badan fi fk<ta 153 – 157 6 6 158 – 162 16 22 163 – 167 8 30 168 – 172 4 34 173 – 177 3 37 178 – 182 1 38 Jumlah 38 Jadi, dari operasi bilangan diatas diperoleh Q1 = 158,59 Q2 = 160,2 Q3 = 166,56
  • 11. 2.6 Menentukan Jangkauan dan Simpangan Kuartil
  • 12. 2.7 Simpangan Rata-rata, ragam dan simpangan baku
  • 13. 2.8 Menentukan Koefisien Variasi ( KV) 2.9 Menentukan Ukuran Kemiringan Kurva (SK)