Descriptive statistics

This study aims at describing the mortality situation in Bac Ninh province from 2017-2020 Methods: A cross-sectional study design was applied. Data regarding individual mortality during 2017- 2020 in Bac Ninh province was collected from mortality registration system (namely A6/YTCS).

10p vihatake 06-01-2025 4 2   Download

-Thống kê là một hệ thống các phương pháp: thu thập,tổng hợp,trình bày,phân tích và suy diễn dữ liệu nhằm hỗ trợ cho quá trình ra quyết định. -Thống kê mô tả(Descriptive Statistics):thu thập dữ liệu,tổng hợp,trình bày,tóm tắt dữ liệu -Thống kê suy diễn (Inferential Statistics): ước lượng,kiểm định giả thuyết,dự đoán

65p truongdoan 09-11-2009 862 349   Download

Phương pháp thống kê (statistics) đã được sử dụng từ lâu trong nhiều ngành kinh tế, y khoa, nông nghiệp, sinh học,môi trường … Các phương pháp thống kê toán học là : Thống kê mô tả (descriptive statistics) Thống kê suy diễn (Inferential statistics) Ước lượng và trắc nghiệm (Estimation and testing) Phân tích tương quan (hồi quy) (Regression analysis) Phân tích chuỗi thời gian (Time series analysis) 5 nhiệm vụ xử lý dữ liệu môi trường : 1). Phân tích dữ liệu điều tra các yếu tố môi trường (đất, nước, không khí …) phục vụ cho việc đánh...

109p bunag204 05-05-2013 207 35   Download

Các phương pháp thống kê toán học là : Thống kê mô tả (descriptive statistics); Thống kê suy diễn (Inferential statistics); Ước lượng và trắc nghiệm (Estimation and testing); Phân tích tương quan (hồi quy) (Regression analysis); Phân tích chuỗi thời gian (Time series analysis)

27p linhlan1903 04-11-2013 208 41   Download

Lectures "Applied statistics for business - Chapter 1: Data and statistics" provides students with the knowledge: Applications in business and economics, data, data sources, descriptive Statistics, statistical Inference, computer and statistical analysis, data mining, ethical guidelines for statistical practice. Invite you to refer to the disclosures.

30p doinhugiobay_13 26-01-2016 66 4   Download

Bài giảng Nghiên cứu Marketing: Chương 6.2 Một số phương pháp và công cụ phân tích dữ liệu cơ bản cung cấp cho người học những kiến thức như: Thống kê mô tả (Descriptive Statistics); Phân tích mối quan hệ giữa hai biến định tính; Phân tích mối quan hệ giữa một biến định lượng và một biến định tính; Phân tích mối quan hệ giữa hai biến định lượng; Đánh giá độ tin cậy thang đo: Hệ số cronb.

43p conbongungoc09 05-08-2021 34 5   Download

This research investigates the relationship between microeconomic, macroeconomic variables and number of cars sold in US. The main objective is to determine the factors that affecting the number of car sold in US. This research covers the time period from 1975 to 1990. The analysis methods that have been applied in this study include descriptive statistics, linear regression and correlation analysis.

36p daothikimlinh 25-02-2021 36 9   Download

In this research paper the analyses and findings are presented based on the results of the research that was conducted. For this purpose descriptive statistics was used and also exponential statistics, test hypotheses through chi-square test.

10p guineverehuynh 21-06-2020 15 4   Download

This paper focuses on the study of customer preferences and its related factors regarding Android Mobile Applications which is both exploratory and descriptive. Anova, a statistical tool was used to test the hypothesis.

11p guineverehuynh 22-06-2020 11 1   Download

Chapter 1 - An introduction to business statistics. After mastering the material in this chapter, you will be able to: Define a variable, describe the difference between a quantitative variable and a qualitative variable, describe the difference between crosssectional data and time series data, construct and interpret a time series (runs) plot,...

11p whocare_b 05-09-2016 63 2   Download

Chapter 2 - Descriptive statistics: Tabular and graphical methods. After mastering the material in this chapter, you will be able to: Summarize qualitative data by using frequency distributions, bar charts, and pie charts; construct and interpret Pareto charts (Optional); summarize quantitative data by using frequency distributions, histograms, frequency polygons, and ogives;...

12p whocare_b 05-09-2016 50 3   Download

Chapter 5 - Discrete random variables. After mastering the material in this chapter, you will be able to: Explain the difference between a discrete random variable and a continuous random variable, find a discrete probability distribution and compute its mean and standard deviation, use the binomial distribution to compute probabilities,...

12p whocare_b 05-09-2016 69 3   Download

Chapter 3 - Descriptive statistics: Numerical methods. After mastering the material in this chapter, you will be able to: Compute and interpret the mean, median, and mode; compute and interpret the range, variance, and standard deviation; use the Empirical Rule and Chebyshev's Theorem to describe variation;...

13p whocare_b 05-09-2016 56 2   Download

Chapter 4 - Probability. After completing this unit, you should be able to: Define a probability and a sample space, list the outcomes in a sample space and use the list to compute probabilities, use elementary probability rules to compute probabilities, compute conditional probabilities and assess independence,...

11p whocare_b 05-09-2016 41 1   Download

Chapter 6 - Continuous random variables. After mastering the material in this chapter, you will be able to: Define a continuous probability distribution and explain how it is used, use the uniform distribution to compute probabilities, describe the properties of the normal distribution and use a cumulative normal table, use the normal distribution to compute probabilities,...

15p whocare_b 05-09-2016 60 2   Download

Chapter 7 - Sampling and sampling distributions. This chapter includes contents: Random sampling; the sampling distribution of the sample mean; the sampling distribution of the sample proportion; stratified random, cluster, and systematic sampling (optional); more about surveys and errors in survey sampling (optional); deviation of the mean and variance of the sample mean (optional).

12p whocare_b 05-09-2016 58 1   Download

Chapter 8 - Confidence intervals. After mastering the material in this chapter, you will be able to: Calculate and interpret a z-based confidence interval for a population mean when σ is known, describe the properties of the t distribution and use a t table, calculate and interpret a t-based confidence interval for a population mean when σ is unknown,...

12p whocare_b 05-09-2016 46 2   Download

Chapter 9 - Hypothesis testing. After mastering the material in this chapter, you will be able to: Set Up appropriate null and alternative hypotheses, describe Type I and Type II errors and their probabilities, use critical values and p-values to perform a z test about a population mean when s is known,...

12p whocare_b 05-09-2016 57 2   Download

Chapter 10 - Comparing two means and two proportions. After mastering the material in this chapter, you will be able to: Compare two population means when the samples are independent, recognize when data come from independent samples and when they are paired, compare two population means when the data are paired, compare two population proportions using large independent samples.

13p whocare_b 05-09-2016 50 2   Download

Chapter 11 - Statistical inferences for population variances. After mastering the material in this chapter, you will be able to: Explain the basic terminology and concepts of experimental design, compare several different population means by using a one-way analysis of variance, compare treatment effects and block effects by using a randomized block design,...

9p whocare_b 05-09-2016 45 3   Download