Many undergraduate students are required to study statistics, but often struggle understanding concepts, lack engagement, confidence, or feel anxious about statistics. Kahoot is a game-based learning platform that can be used increase student engagement and through real-time quizzes. This aimed evaluate the use of on improving students’ experience studying statistics in an (year 2) course. Pre ...

The covering number c(K) of a convex body K is the least number of smaller homothetic copies of K needed to cover K . We provide new upper bounds for c(K) when K is centrally symmetric by introducing and studying the generalized α -blocking number βα 2 (K) of K . It is shown that when a centrally symmetric convex body K is sufficiently close to a centrally symmetric convex body K′ , then c(K) i...

We consider the class of Shaped Partition Problems of partitioning n given vectors in d-dimensional criteria space into p parts so as to maximize an arbitrary objective function which is convex on the sum of vectors in each part, subject to arbitrary constraints on the number of elements in each part. This class has broad expressive power and captures NP-hard problems even if either d or p is x...

Abstract It is well-known that one of the reasons for reducing head a centrifugal pump, when trimming its impeller, reduction slip factor. There are various methods used to determine it, but there lack information on whether they applicable in case pump with trimmed impeller operates. In present work, comparative experimental study concerning applicability some factor, two pumps different speci...