QUIZ
STATSITIKA DAN PROBABILITAS
Diajukan untuk memenuhi salah satu tugas mata kuliah Statistika dan Probabilitas yang diampu oleh Dr. Ir. H. Iskandar Muda Purwaamijaya, M.T.
Muhammad Rafi Sabila Rahman 2001576
PROGRAM STUDI TEKNIK SIPIL DEPARTEMEN PENDIDIKAN TEKNIK SIPIL
FAKULTAS PENDIDIKAN TEKNOLOGI DAN KEJURUAN UNIVERSITAS PENDIDIKAN INDONESIA
BANDUNG
2021 1. What is meaning of descriptive statistics
Descriptive statistics in general is a method that deals with collecting or presenting data to provide useful information.
2. Mention 2 aspect of descriptive statistics
Qualitative Descriptive Statistics
Qualitative data is usually a description the object of research. Qualitative data also provides and shows the quality of the object of the research being carried out.
Quantitative Descriptive Statistics
Quantitative descriptive statistics are types of data that can be measured (measurable) or calculated directly as numerical or numeric variables. Variables in statistics are attributes, characteristics, or measurements that describe a case or object of research. Quantitative descriptive statistics are divided into two types of data, namely.
3. What are data group techniques for quantitative statistics?
Survey
Data collection in research must of course be carried out scientifically and systematically. Researchers conducted a survey by distributing questionnaires or questionnaires as a research instrument, the questionnaire became an effective and efficient container for collecting data to be measured
Interview
This method is usually used in both quantitative and qualitative research.
The interview is a data collection process, using informants who answer questions posed for research purposes. In quantitative research, the type of interview is used in a structured form
Observation
Observations made for the required data materials must be carried out with precision and care. The practice of observation involves the use of several of the researchers' senses, especially sight and hearing to capture surrounding phenomena that can be used as data.
4. What are data group techniques for qualitative statistics?
Interview
The interview is proof of the information that has been obtained.
Interviewing is the process of obtaining information for research purposes, and to fulfill the data needs needed
Documents
Documents are a source of data used to complement research, in the form of written sources, films and pictures. This document will provide information for the research process.
Triangulations
Triangulation is the most commonly used method of verifying data. This method is done by collecting data from a variety of different sources, using the same method.
5. Find the mean of 8, 5, 7, 10, 15, 21 Data : 5, 7, 8, 10, 15, 21
∑ xn=5+7+8+10+15+21=6 6 n=6
X=∑ xn n X=66
6
X=11
