selamat pagi anak

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

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