Portal Kopertis Wilayah III: DISTRIBUSI NORMAL DALAM TEORI DAN APLIKASI STATISTIKA Search Repository Browse Sign on to: authorized users Please use this identifier to cite or link to this item: Title: DISTRIBUSI NORMAL DALAM TEORI DAN APLIKASI STATISTIKA Authors: Keywords: standar normal distribution Issue Date: Jun-2012 Publisher: SIGMA Journal Citation: Universitas Muhammadiyah Prof. Hamka Abstract: Among the many continuous distributions used in statistics, the normal distribution is by far the most important. It was observed that discrepancies between repeated measurements of the same physical quantity displayed a surprising degree of regularity curve. The graph of a normal distribution is a bell-shaped curve that extends indefinitely in both direction. The curve comes closer and closer to the horizontal axis without ever reaching it, no matter how far we go from the mean in either direction. An important feature of a normal distribution is that its mathematical equation is such that we can determine the area under the curve between any two points on the horizontal scale, if we know its mean µ and its standard deviation σ. In practice, we find areas under the graph of a normal distribution, in special curve areas for all conceivable pairs of values of µ and σ, we tabulated these areas only for a normal distribution having µ = 0 and σ = 1, the so-called standard normal distribution.
Then, we obtain areas under any normal distribution by performing a simple change of scale, or x-scale into z-scores, by means of the formula: z = (χ-µ)/σ. In this the z-scale tell us how many standard deviations the corresponding x-value lies above or below the mean of its distribution URI: ISSN: 1411-5166 Appears in Collections: Files in This Item: File Description Size Format 18.03 MB Adobe PDF.
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Dec 16, 2018 - [16] Supranto J 2001 Statistik: Teori & Aplikasi, Edisi 6 (Bandung: Erlangga). [18] Sudjana 1996 Metode Statistika (Bandung: Erlangga). Buku ini memberikan pembahasan mengenai statistik yang lengkap karena disusun oleh pakar yang tidak saja mumpuni secara teori, tapi juga berpengalaman sebagai akademisi dan praktisi statistik. Dengan mempelajari buku ini, diharapkan akan memberikan pemahaman yang lebih komprehensif kepada seluruh kalangan yang ingin mendalami masalah statistik.