scholarly journals Kesadaran Keselamatan dengan Agresivitas Berkendara Pengendara Sepeda Motor

2020 ◽  
Vol 8 (4) ◽  
pp. 579
Author(s):  
Jeni Laras Shinta
Keyword(s):  
Product Moments

Tingginya angka kecelakaan di Indonesia dikarenakan kurangnya kesadaran keselamatan sehingga pengendara sepeda motor berkendara dengan berbahaya. Penelitian ini menguji secara empirik apakah terdapat hubungan antara kesadaran keselamatan dengan agresivitas berkendara pada pengendara sepeda motor di Samarinda dengan sampel sebanyak 100 orang. Penelitian ini menggunakan skala kesadaran keselamatan dan agresivitas berkendara yang dianalisis dengan uji statistik product moments. Hasil menunjukkan bahwa terdapat hubungan antara kesadaran keselamatan dengan agresivitas berkendara dengan nilai rhitung = 0.392 > rtabel = 0.197, dan nilai p = 0.005. Dapat disimpulkan bahwa semakin tinggi kesadaran keselamatan maka semakin tinggi agresivitas berkendara, begitu pula sebaliknya. Kesadaran keselamatan memiliki hubungan terhadap agresivitas berkendara dari aspek berkendara dengan kecepatan tinggi, meluapkan kemarahan saat di jalan, dan menghalangi jalan pengendara lain untuk mendahului.

scholarly journals Relations for Moments of Generalized Order Statistics for Transmuted Exponential Distribution and Characterization

2021 ◽  
pp. 43-50
Author(s):  
Saman Shahbaz ◽  
Mashail Al-Sobhi ◽  
Rehan Ahmad Khan Sherwani
Keyword(s):  
Order Statistics ◽  
Exponential Distribution ◽  
Generalized Order Statistics ◽  
Product Moments ◽  
Recursive Computation ◽  
Single And Product Moments ◽  
Generalized Order

The relations for moments of generalized order statistics (gos) for transmuted exponential distribution are obtained. These include relations for single, inverse, product and ratio moments. These relations are useful in for recursive computation of moments of gos for transmuted exponential distribution. Some characterizations of the distribution, based on single and product moments of gos, are also obtained.

Product Moments, Material Eternities

2019 ◽  
pp. 161-165
Author(s):  
Jonathan Chapman
Keyword(s):  
Product Moments

VII.—The Correlation between Product Moments of any Order in Samples from a Normal Population

1930 ◽  
Vol 49 ◽  
pp. 78-90 ◽  
Author(s):  
John Wishart
Keyword(s):  
Normal Population ◽  
Considerable Importance ◽  
Subsequent Work ◽  
Product Moments ◽  
The Right

1. A problem of considerable importance in the theory of statistics is the determination of the accuracy with which a given sample of observations determines the characteristics of the population from which it is derived. Any parameter of this distribution can only in practice be estimated from the sample, and the degree of latitude in our choice of the right function enables considerations of suitability and efficiency of the particular moment statistic to be taken into account. As well as this, however, the probable errors of such frequency constants, or, to be more complete, the distribution of the constants in all possible samples, must be determined. These problems were formulated many years ago by Karl Pearson (1), and his important researches have stimulated and suggested much subsequent work.

scholarly journals Statistics for Ratios of Rayleigh, Rician, Nakagami-m, and Weibull Distributed Random Variables

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Dragana Č. Pavlović ◽  
Nikola M. Sekulović ◽  
Gradimir V. Milovanović ◽  
Aleksandra S. Panajotović ◽  
Mihajlo Č. Stefanović ◽  
...  
Keyword(s):  
Random Variables ◽  
Joint Probability ◽  
Wireless Systems ◽  
Technical Literature ◽  
Product Moments ◽  
Outdoor Environments ◽  
Indoor And Outdoor Environments ◽  
Analytical Expressions ◽  
Joint Probability Density ◽  
Indoor And Outdoor

The distributions of ratios of random variables are of interest in many areas of the sciences. In this brief paper, we present the joint probability density function (PDF) and PDF of maximum of ratiosμ1=R1/r1andμ2=R2/r2for the cases whereR1,R2,r1, andr2are Rayleigh, Rician, Nakagami-m, and Weibull distributed random variables. Random variablesR1andR2, as well as random variablesr1andr2, are correlated. Ascertaining on the suitability of the Weibull distribution to describe fading in both indoor and outdoor environments, special attention is dedicated to the case of Weibull random variables. For this case, analytical expressions for the joint PDF, PDF of maximum, PDF of minimum, and product moments of arbitrary number of ratiosμi=Ri/ri,i=1,…,Lare obtained. Random variables in numerator,Ri, as well as random variables in denominator,ri, are exponentially correlated. To the best of the authors' knowledge, analytical expressions for the PDF of minimum and product moments of{μi}i=1Lare novel in the open technical literature. The proposed mathematical analysis is complemented by various numerical results. An application of presented theoretical results is illustrated with respect to performance assessment of wireless systems.

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