In this study, the RiskMetrics method is used to estimate Value at Risk for two exchange rates: BitCoin/dollar and South African Rand/dollar. compare riskiness of currencies. This help Africans investors understand risk they are taking by converting their savings/investments BitCoin instead currency, Rand. The Maximum Likelihood Estimation parameters models. Seven statistical error distribution...

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In the summer of 2000, perfectly timed to shape the election debate over education reform, came a new RAND study that claimed to contradict the conventional research wisdom on the connection between school expenditures and class size on the one hand and student achievement on the other. “Our results certainly challenge the traditional view of public education as ‘unreformable,’” the study’s dir...

A positive answer to a question of M. van Lambalgen and D. Zam-bella whether there exist nonrecursive sets that are low for the class of random sets is obtained. Here a set A is low for the class RAND of random sets if RAND = RAND A .

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Cluster Accuracy: agreement with the functional categories Each entry shows the adjusted Rand index of the corresponding algorithm with the functional categories. The maximum adjusted Rand index of each row is shown in bold. The algorithms (rows) are sorted in descending order of the maximum adjusted Rand in each row. DIANA and single-link produce the least accurate clusters. *CAST did not conv...

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RAND issue papers explore topics of interest to the policymaking community. Although issue papers are formally reviewed, authors have substantial latitude to express provocative views without doing full justice to other perspectives. The views and conclusions expressed in issue papers are those of the authors and do not necessarily represent those of RAND or its research sponsors. © Copyright R...

RAND issue papers explore topics of interest to the policymaking community. Although issue papers are formally reviewed, authors have substantial latitude to express provocative views without doing full justice to other perspectives. The views and conclusions expressed in issue papers are those of the authors and do not necessarily represent those of RAND or its research sponsors. © Copyright R...