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Scheppend statistics
 

Scheppend statistics

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    Scheppend statistics Scheppend statistics Presentation Transcript

    • Statistics DefinitonStatistics is a study or scientific method of collecting, organizing, processing, presenting, and analyzing data and drawing a conclusion according to the result of the data analysisStatistika adalah ilmu atau suatu metode ilmiah tentang cara- cara mengumpulkan, menyusun, mengolah, menyajikan, menganalis-is data serta menarik kesimpulan berdasarkan hasil penganalisian data tersebut.Statistics is divided into 2, population and sample. Statistika dibagi menjadi 2, populasi dan sampel
    • Population is set of all object that become target of observation Population adalah himpunan semua objek yang menjadi sasaran pengamatanSample is subset of population that was taken to be object observation. Sampel adalah himpunan bagian dari populasi yang diambil untuk dijadikan objek pengamatan.Statistics is closely related to data Statistika berkaitan dengan dataData is the plural form, Datum is the singular form. Data adalah bentuk jamak, Datum adalah bentuk tunggal
    • Collection Of DataCollection of data is the beginning stage in the statistical activityPengumpulan data adalah bagian permulaan dalam kegiatan statistika.Collecting data can be performed by : Interview / Questionnaire (Wawancara) Counting (Mencacah) Measuring (Mengukur) Recording by tallies (Mencatat data dengan turus)
    • Collection Of DataData can be divided into: - Quantitative data, data in former of number - Qualitative data, data in former of non numberData dapat dibagi menjadi: - Data kuantitatif, data dalam bentuk bilangan/angka - Data kualitatif, data bukan dalam bentuk angka/bilangan
    • Measures Of Central TendencyThe measures of central tedency consist of mean, mode, median Ukuran pemusatan data terdiri dati mean, modus, medianMean (arithmetic mean) Mean (rata-rata hitung)Mode (the value that occurs most often) Modus (nilai yang paling banyak muncul)Median (the middle value) Median (nilai tengah)
    • Mean (∑) is the average value of a group of data that is formulated by: Mean = sum of all values (jumlah seluruh nilai) Number of data (banyak data)• Or Mean = Each Value . Each Frequency Total Of FrequencyTo find modus, just look for the value which appear most often. Untuk mencari modus, carilah nilai yan paling banyak muncul.Ex (contoh) : 6,6,5,2,1 modusnya adalah 6Median is in the middle of values that has been ordered Median berada di tengah nilai-nilai yang talah di urutkan
    • Data can be present by: Data dapat disajikan dengan: - Table - Diagram : - Pictogram - Bar Chart - Line Graph - Pie Chart
    • IX-C121086420
    • Score (x) Tally Frequency X.F 40 I 1 40 50 II 2 100 60 III 3 180 70 III 3 210 80 IIII IIII 10 800 90 IIII 5 450 100 IIII I 6 600
    • • Mean = 100 + 40 + 180 + 210 + 800 + 450 + 600 30 = 79.333333……• Median = 80• Modus = 80
    • Scheppend Group