TAILIEUCHUNG - Lecture Basic statistics for business and economics - Chapter 2: Describing data: frequency tables, frequency distributions, and graphic presentation

Chapter 2 - Describing data: frequency tables, frequency distributions, and graphic presentation. The main goals of this chapter are to: Make a frequency table for a set of data, organize data into a bar chart, present a set of data using a pie chart, create a frequency distribution for a data set, understand a relative frequency distribution, present data from a frequency distribution in a construct and interpret a cumulative frequency distribution. | Describing Data: Frequency Tables, Frequency Distributions, and Graphic Presentation Chapter 02 Copyright © 2013 by The McGraw-Hill Companies, Inc. All rights reserved. McGraw-Hill/Irwin LEARNING OBJECTIVES LO 2-1 Make a frequency table for a set of data. LO 2-2 Organize data into a bar chart. LO 2-3 Present a set of data using a pie chart. LO 2-4 Create a frequency distribution for a data set. LO 2-5 Understand a relative frequency distribution. LO 2-6 Present data from a frequency distribution in a histogram or frequency polygon. LO 2-7 Construct and interpret a cumulative frequency distribution. 2- Frequency Table and Frequency Distribution Class interval: The class interval is obtained by subtracting the lower limit of a class from the lower limit of the next class. Class frequency: The number of observations in each class. Class midpoint: A point that divides a class into two equal parts. This is the average of the upper and lower class limits. FREQUENCY TABLE A grouping of qualitative data into mutually exclusive classes showing the number of observations in each class. FREQUENCY DISTRIBUTION A grouping of data into mutually exclusive classes showing the number of observations in each class. LO 2-1 Make a frequency table for a set of data. 2- Bar Charts BAR CHART A graph in which the classes are reported on the horizontal axis and the class frequencies on the vertical axis. The class frequencies are proportional to the heights of the bars. LO 2-2 Organize data into a bar chart. 2- Pie Charts PIE CHART A chart that shows the proportion or percent that each class represents of the total number of frequencies. LO2-3 Organize data into a pie chart. 2- EXAMPLE – Creating a Frequency Distribution Table Ms. Kathryn Ball of AutoUSA wants to develop tables, charts, and graphs to show the typical selling price on various dealer lots. The table on the right reports only the price of the 80 vehicles sold last month at Whitner Autoplex.

• Kinh tế học
• Basic statistics
• Statistics for business
• Describing data
• Frequency tables
• Frequency distributions
• Graphic presentation
• Types of statistics
• Quantitative variables
• Ordinal level data
• Lecture Basic Statistics
• Bài giảng Thống kê cơ bản
• Introduction to Statistics
• Real limits
• Measuring variables
• Correlational studies
• Basic statistics for business
• Basic statistics for economics
• Probability concepts
• Continuous probability distributions
• The central limit theorem
• Confidence intervals
• Two sample tests of hypothesis
• Linear regression
• Multiple regression
• Numerical measures
• Sample mean
• Measures of dispersion
• Exploring data
• Dot plot
• Coefficient of skewness
• Joint probability
• Contingency table
• Discrete probability distributions
• Probability distribution
• Continuous random variable
• Uniform distribution
• Normal probability distribution
• Sampling methods
• Central limit theorem
• Probability sampling
• Point estimate
• Confidence interval
• One sample tests
• Hypothesis testing
• Test statistic
• Equal variances
• Two sample tests
• Analysis of variance
• Dependent variable
• Independent variable
• Multiple regression analysis
• Multiple linear regression
• Multiple determination
• Nonparametric methods
• Goodness of fit tests
• Contingency table analysis
• Basic business statistics
• Visualizing data
• Basic probability
• The normal distribution
• Other continuous distributions
• Statistical techniques
• Study statistics
• Inferential statistics
• The essentials of statistics
• Basic descriptive statistics
• Ratios and rates
• Central tendency
• The normal curve
• Financial risk management
• Statistics mathematics
• Risk management
• Financial risk
• Financial mathematics
• Some basic math
• Percentile ranks
• The binomial distribution
• descriptive statistics
• basic probability theory
• inductive statistics
• multivariate analysis
• firm understanding
• concise manner
• Conditional probability
• Bayes’ theorem