Practices of the Random Variable Proposed in the Chilean Mathematics Curriculum of Secondary Education

Working with statistical data from real contexts has become fundamental in school-level statistics, because it enables the development of statistical reasoning. In this regard, the notion of the random variable is fundamental to statistical data analysis. Thus, the aim of this research was to characterise the meanings of the concept of the random variable that are promoted in the Chilean mathematics curriculum for secondary education. To achieve this, we examined the representativeness of the meanings of the random variable intended by the curriculum in relation to the meanings of reference for this concept, using theoretical and methodological notions from the onto-semiotic approach. The findings show that the meanings of reference were not fully represented in the textbooks and the national curriculum, and that the most promoted meaning was that of the random variable as a variable of interest. Regarding the types of representation, it was observed that the graphical and tabular representations were neglected. Lastly, it was noticed that definitions of the concept of variable, its classifications, and differences were omitted almost entirely from the textbooks.

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Knowledge-Based Decision Support for Diagnosis and Therapy: On the Multiple Usability of Patient Data

Methods of Information in Medicine ◽

10.1055/s-0038-1635551 ◽

1989 ◽

Vol 28 (02) ◽

pp. 69-77 ◽

Cited By ~ 10

Author(s):

R. Haux

Keyword(s):

Expert Systems ◽

Statistical Data ◽

Patient Data ◽

Attribute Selection ◽

Patient Specific ◽

Statistical Data Analysis ◽

Inference Mechanism ◽

Diagnosis And Therapy ◽

Knowledge Based ◽

Clinical Registries

Abstract:Expert systems in medicine are frequently restricted to assisting the physician to derive a patient-specific diagnosis and therapy proposal. In many cases, however, there is a clinical need to use these patient data for other purposes as well. The intention of this paper is to show how and to what extent patient data in expert systems can additionally be used to create clinical registries and for statistical data analysis. At first, the pitfalls of goal-oriented mechanisms for the multiple usability of data are shown by means of an example. Then a data acquisition and inference mechanism is proposed, which includes a procedure for controlling selection bias, the so-called knowledge-based attribute selection. The functional view and the architectural view of expert systems suitable for the multiple usability of patient data is outlined in general and then by means of an application example. Finally, the ideas presented are discussed and compared with related approaches.

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Market of Insurance in Russia: Major Tendencies and Problems of Development

Voprosy Ekonomiki ◽

10.32609/0042-8736-2006-12-115-127 ◽

2006 ◽

pp. 115-127

Author(s):

T Natkhov

Keyword(s):

Data Analysis ◽

Statistical Data ◽

Statistical Data Analysis ◽

Medium Term ◽

Insurance Sector ◽

Different Types ◽

Basic Characteristics

The article considers recent tendencies in the development of the market of insurance in Russia. On the basis of statistical data analysis the most urgent problems of the insurance sector are formulated. Basic characteristics of different types of insurance are revealed, and measures on perfection of the insurance institution in the medium term are proposed.

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Statistical data analysis of PJSC “NK “Rosneft” field pipelines failure

Automation Telemechanization and Communication in Oil Industry ◽

10.33285/0132-2222-2019-9(554)-15-21 ◽

2019 ◽

pp. 15-21

Author(s):

D.P. Karmachev ◽

Keyword(s):

Data Analysis ◽

Statistical Data ◽

Statistical Data Analysis

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Visual Merchandising and Customers’ Impulse Buying Behavior: A Case of a Fashion Specialty Store

International Journal of Service Management and Sustainability ◽

10.24191/ijsms.v4i1.8141 ◽

2020 ◽

Vol 4 (1) ◽

pp. 1

Author(s):

Hadijah Iberahim ◽

Nur Amira Zureena Zulkurnain ◽

Raja Najwa Syamim Raja Ainal Shah ◽

Siti Quraisyiah Rosli

Keyword(s):

Adverse Effect ◽

Statistical Data ◽

Impulse Buying ◽

Kuala Lumpur ◽

Statistical Data Analysis ◽

Buying Behavior ◽

Specialty Store ◽

Research Outcome ◽

Five Elements ◽

Visual Merchandising

Visual merchandising is an extremely important element as the first visual cue that affects buying behavior of customers. This study aims to identify determinants of visual merchandising that influence customers’ impulse buying behavior. This study focuses on five elements of visual merchandising which are window display, mannequin display, floor merchandising, promotional signage and lighting. Investigation was conducted at a popular fashion specialty store in Kuala Lumpur, Malaysia. A total of 150 customers' feedback was collected. Results of statistical data analysis show that three out of five visual merchandising elements are important in influencing the customers’ impulse buying behavior. Window display, mannequin display and promotional signage are positively related and identified as determinants of effective visual merchandising for impulse buying decision at the women fashion specialty store. The research outcome extends understanding on the adverse effect of visual merchandising on customers’ behavior.

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BANK SPÓŁDZIELCZY (COOPERATIVE BANK) AS A GUARANTOR OF THE STABILISATION OF THE LOCAL FINANCIAL SYSTEM1

SCIENTIFIC BULLETIN OF POLISSIA ◽

10.25140/2410-9576-2019-1(17)-173-179 ◽

2019 ◽

pp. 173-179

Author(s):

Andrzej Pawlik

Keyword(s):

Data Analysis ◽

Banking Sector ◽

Statistical Data ◽

Local Development ◽

Banking System ◽

Analysis Method ◽

Statistical Data Analysis ◽

Data Analysis Method ◽

Strong Position ◽

Cooperative Banks

Urgency of the research. One of the most essential sources of supporting regional and local development is the banking system. Target setting. The study presented describes cooperative banking, represented by Bank Polskiej Spółdzielczości S.A. and Bank Spółdzielczy w Kielcach. The use of the statistical data analysis method allowed to demonstrate the strong position of cooperative banking in the market, fostering regional and local development. Actual scientific researches and issues analysis. The foundations for the modern cooperative banking sector were laid by cooperative financial organisations functioning more than 150 years ago [Pawlik, 2017, s. 152]. Its history is connected with difficulties faced in the period of partitions, work at the foundations after the end of World War I and Poland’s regaining its national independence. Uninvestigated parts of general matters defining. At present, cooperative banking functions as a result of the adoption by the Sejm of the Republic of Poland on 7 December 2000 of the act on the functioning of cooperative banks, their associations and associating banks, which ensured new legal conditions for the functioning of the sector2. The research objective. The article formulates the hypothesis that nowadays activities of cooperative banks will contribute to regional and local development. The statement of basic materials. One of the most essential sources of supporting regional and local development is the banking system. This system can guarantee the stabilisation of the local financial system. By supporting the development of regional and local entrepreneurship through loans, investment activities of the banks and financial and investment consulting, it will determine the identity of the region concerned. Conclusions. The use of the statistical data analysis method allowed to demonstrate the strong position of cooperative banking in the market, fostering regional and local development.

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