A local trajectory is a series of mathematical activities designed to facilitate the development of students' understanding of learning objectves. This study aims to develop a Local Instruction Theory (LIT) for teaching the concepts of central tendency (mean, median, mode), and to explore how students develop their understanding informally using the context of pH water to support students' crit…
Income inequality is a problem of uneven distribution of income across regions. In South Sumatra, this income inequality is considered moderate when measured by the Gini ratio. This study aims to identify the variables that significantly affecting income inequality in 12 regencies/municipalities in South Sumatra Province from 2019 to 2023 using panel data regression. Panel data is a combination…
HIV/AIDS cases in an area may be influenced by the adjacent areas. Analysis of factors affecting HIV/AIDS cases can be done through classical Linear Regression. However, spatial regression analysis is a more suitable method to use if location is taken into account. The purpose of this research is to perform a spatial regression analysis on the HIV/AIDS cases in Indonesia in 2021. Spatial depend…
Rainfall is a key component of the water cycle and plays an important role in the ecosystem, especially in tropical regions such as Indralaya Regency. Rain affects various operational aspects in the field, particularly in agriculture and plantations. Binary Logistic Regression and K-Nearest Neighbor (KNN) can be used to classify rainfall events. One common issue in rainfall event classification…
Pada Saat ini, Statistika telah berkembang jauh, seiring dengan ditemukan dan berkembangnya teori peluang. statistika telah memungkinkan untuk melihat jauh kedepan di luar data itu sendiri. Statistika pada tahun 1950-an telah memasuki wilayah pengambilan keputusan melalui proses generalisasi dan peramalan dengan memperhatikan faktor resiko dan ketidakpastian.
Buku statistika untuk penelitian bermanfaat bagi para praktisi di bidang ilmu ekonomi dan studi pembangunan, bisnis akuntansi dan mereka yang sedang menempuh program pasca sarjana, serta para praktisi dari berbagai bidang ilmu. Buku statistika untuk penelitian ditulis untuk membantu para calon peneliti dan para peneliti yang merasa sulit untuk mengaplikasikan statistika dalam penelitiannya.
Buku ini menggunakan pendekatan yang berbeda dengan buku statistika lain yang telah ada sebelumnya. Buku ini dirancang khusus untuk bidang ekonomi dan keuangan modern dengan menerapkan teori statistika pada kasus aktual dalam bidang tersebut. Selain itu, buku ini juga dilengkapi dengan kajian kasus, latihan soal terjawab, sekaligus penjelasan cara menggunakan alat bantu komputer berupa program …
Buku ini membahas teori dan soal menggunakan data riil ekonomi dan keuangan di Indonesia. Penekanan buku 1 ini ada pada statistik deskriptif.
The quality of data is determined by several factors, namely data completeness and data balance. The University of California Irvine (UCI) heart disease dataset has issues with missing data and data imbalance, which, if not addressed, can lead to reduced model prediction accuracy and errors in data interpretation. Missing data can be handled using several methods, one of which is data imputatio…
Topographically, Palembang city consists mostly of swamps and lowlands. The city's condition of being surrounded by rivers and its moderate annual rainfall of 2500-3000 mm makes Palembang prone to flooding. Therefore, accurately predicting rainfall events is crucial to minimize the impact on daily activities. The rainfall prediction classification process, missing data and imbalanced data were …
The stock price is the current market price determined by supply and demand on the stock exchange. A high share price reflects the high value of the company and creates investor confidence. The purpose of this study is to find out to obtain the best panel data regression model estimates and factors that affect stock prices in companies listed on the LQ-45 index for 2019-2023. The data used is s…
Logam yang banyak digunakan dalam bidang industri permesinan dan konstruksi adalah baja. Baja dimanfaatkan dalam pembagunan gedung, peralatan rumah tangga, kendaraan dan lainnya. Kualitas produksi baja dapat ditingkatkan dan masa pakainya diperpanjang melalui pengurangan tingkat kekasaran permukaan baja. Kekasaran permukaan merupakan ukuran ketidakteraturan mikro pada permukaan suatu benda yang…
Baja merupakan perpaduan antara besi, karbon dan unsur lainnya. Pengaplikasian baja diatur oleh International Organization of Standardization (ISO) seperti ISO 4948 yang mengatur klasifikasi jenis baja berdasarkan komposisi kimianya dan ISO 8503 yang mengatur tingkat kekasaran permukaan baja. Pengaplikasian baja di beberapa material memerlukan tingkat kekasaran yang berbeda. Pengklasifikasian k…
Di dalam buku ini dijelaskan tentang dua jenis statistika, yaitu statistika deskriptif dan statistika induktif.
The use of communication technology has increased, especially in the use of the internet, thus encouraging Internet Service Providers as service providers to improve the quality of services at more affordable costs. This research uses secondary data, namely traffic data from one of the local servers in the city of Palembang with the aim of producing optimal models and solutions from improved mo…
The rapid development of urban areas in Indonesia is in line with the increase in population and is proportional to the waste produced. One solution to the waste problem is to provide Temporary Waste Disposal Sites (TWDS) with optimal locations. Optimizing location placement is one part of optimization and is included in the Set Covering Problem (SCP) classification. This research aims to deter…
The discussion in this study is about solving optimization problems in determining the optimal location of emergency rooms in Palembang City by utilizing the two methods used in decision making, namely the TOPSIS method and MABAC in the SCP model. TOPSIS and MABAC methods are used for decision making based on certain criteria. There are seven criteria used in this study including the distance o…
The objective condition of the quality of education in Jambi Province still has many weaknesses that must be improved and has different levels in each region, so it is necessary to group regions in Jambi Province based on education indicators for primary, middle, and higher education levels. The purpose is to obtain similar characteristics of regional groups in Jambi Province for primary, middl…