USA
Statistical data are numbers that are based on a sampling of a population to predict an outcome. The accuracy depends on the sample number and error and confidence and other analysis.
A statistical question is one that anticipates variability in the data and can be answered by collecting and analyzing data. Unlike a question with a definitive answer, a statistical question typically involves a population and seeks to understand trends, patterns, or distributions within that population. For example, "What is the average height of students in a school?" is a statistical question, as it requires data collection and consideration of variation among students.
It is a statistical measure that helps you understand the sample/population data.
The larger the sample of data collected leads to a more accurate conclusion.
The National Statistics Office is responsible for collecting, analyzing, and disseminating statistical data on various aspects of a country, such as population, economy, social indicators, and more. They provide reliable and accurate information for decision-making, policy formulation, research, and planning purposes.
statistical goodness of fit test used for categorical data to test if a sample of data came from a population with a specific distribution. It can be applied for discrete distributions.
A statistical estimate is an estimation of population based on one or many data samples of a group. There are two types of estimates: point and interval.
Inferential statistics is not required in a census because a census aims to collect data from every individual in a population, leaving no room for sampling error or uncertainty. The goal of a census is to provide an accurate count or measurement of a specific characteristic within a population, making the need for statistical inference unnecessary. In contrast, inferential statistics is used when data is collected from a sample of a population, and the goal is to make predictions or inferences about the larger population based on that sample.
A statistical question is one that anticipates variability in the data and requires data collection and analysis to answer it. Unlike a question with a definitive answer, a statistical question typically involves a population or a sample and seeks to understand trends, patterns, or relationships within that data. For example, asking "What is the average height of students in a school?" invites a range of responses and necessitates statistical methods to derive an answer.
The lambda value in statistical analysis is significant because it helps determine the level of transformation needed to make data more normally distributed, which is important for accurate statistical testing and interpretation of results.
The symbol represents the mean of a sample in statistical analysis. It is significant because it helps to estimate the population mean and understand the central tendency of the data.
As to the recent statistical agency of Ethiopia, and estimated one third of the total population of the country(80M) is Oromo, but their data aren't reliable because as the government uses the statistical data for budget planning, it underestimates & for example the population of Tigray is overestimated to about 7M, just to allocate more budget for them, in reality it's below this figure. Somali is in fourth place, but in reality Somali should be in third place, next to Amhara. Oromo is the large ethnic group in the country.