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7/31/2019 selamat pagi anak
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selamat pagi anak-anakapa kabar pagi iniapakah anda sudah siap belajarsebelum kita belajar ibu akan mengabsen kalian dahulu, Bahar, Rahmatia, Ramli ......Hari ini kita akan belajar mengenai statistik, khususnya median.pengertian median: Median adalah data yang paling di tengah setelah data itu diurutkan . Median terbagidua, 1. median data tunggal dan 2. median data berkelompok.Contoh untuk data tunggalTentukan median dari:1. 5,6,10,1,3,3,,42. 1,9,7,7,8,3,11,11Tb adalah tepi bawah kelas median
f adalah jumlah frekuensicfb adalah frekuensi kumulatif dibawah kelas mediandibawah artinya lebih kecilfd adalah frekuensi dalam kelas mediani adalah panjang interval kelascontoh soal:tentukan median dari:
jawab:
Pertama-tama kita buatkan satu kolom yaitu kolom cf(frekuensi kumulatif).kemudian kita pindahkan frekuensi data kelas terkecil ke kolom cf
jawab:
1. Kita tentukan kelas median caranya:1/2 f = 1/2 (30) =15 ( berada di cf= 17) artinyaangka 15 berada di dalam angka 17
2. Dari kelas ini kita cari Tb = Bb -0,5 (rumus)
Sampai disini pelajaran kita hari ini dan setelah engkau sampai di rumah jangan lupa mengulanginyakembali
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1. Good morning studens
2. How are you this morning ?
3. Do you have ready to learn ?
4. Before we learn I want chek of your name. Bahar, Rahmatia, Ramli
5. Today our will learn to hit the statistic, specially median.
6. The mearning(demining) of median
Median [is] most data in the middle (midel) ofafter that data sort
Divisible (divisaibel) median two
1. single data median and
2. data median team .
Example [of] for the data of single
Determining(determaining) median from :
1. 5 , 6 , 10 , 1 , 3 , 3 , 4
2. 1 , 9 , 7 , 7 , 8 , 3 , 11 , 11
Answer, Number one
First of all we sort first from smallest (smolts) value (veliu) to biggest
(biges) value (veliu) become (bicam)
1 , 3 , 3 , 4 , 5 , 6 , 10 to the number of data there [is] seven (n=7)
Because anomalous(enemolius) n hence(hens) its median [is] most
data in the middle(midel)
of, that is 4 ( four)
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Number two
you please sort to start the smallest number to biggest number.
1 , 3 , 7 , 7 , 8 , 9 , 11 , 11 heren= 8 (even number) hence its median
[is] two data which is in the middle is summed (samd) then divided [by]
two, So its median is 7 + 8 = 15 : 2 = 7,5.
Do you understand ? If you have understood we move(muf) to the data
team.
To look for the median from data team we use (yus) median formula [of]
data team that is
Median = Tb +
Tb = [is] Edge (eds) [of] under median class
f = [is] Frequency amount
Cfb = [is] Cumulative frequency under median class
[Under its meaning (mining) [is] smaller (smoler)]
Fd = [is] Frequency in median class
I = [is] length of interval class
Example of the median team:
Determining(determaining) median from:
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All that [is] left side referred [as] [by] boundary [of]under
while which [is] right side referred [as] [by]boundary for
Here have to is of equal
It here 30 here also 30
Answer:
First of all we make one column that is column CF
CF is (Cumulative Frequency).later;then we remove the smallest (smoles) class data frequency to
column CF
1. We determine(determain) the median class its way (wey):
1/2 f = 1/2 (30) = 15 ( residing in CF = 17) its meaning
number 15 residing(resaiding) in number 17
2. From this class [is] we look for the Tb = Bb - 0,5 ( formula)
Tb = 24 0,5 = 23,5 ; Fd = 10 ; Cfb = 7 ; i= 5
Median = 23,5 +
5 Bb = Boundary of under
= 23,5 +
Ba = Boundary up
= 23,4 + 4
= 27,4
To this end our meeting,
and I say a lot of thanks for your attention
Skor frequency CF
9 1314 - 18
19 2324 2829 3334 - 38
21
41058
23
7172230
jumlah 30