Sociology: Your Compass for a New World Robert J. Brym and John Lie Wadsworth Group/Thomson Learning © 2003.

Slides:

Advertisements

Similar presentations

Appendix A. Descriptive Statistics Statistics used to organize and summarize data in a meaningful way.

Advertisements

BHS Methods in Behavioral Sciences I April 18, 2003 Chapter 4 (Ray) – Descriptive Statistics.

QUANTITATIVE DATA ANALYSIS

Central Tendency and Variability Chapter 4. Central Tendency >Mean: arithmetic average Add up all scores, divide by number of scores >Median: middle score.

Measures of Central Tendency Jan Sands 2007 Mean, Median, Mode, Range.

Think about it... Do you know what mean, median, mode, and range are?

Mean, Median, Mode and Range

Measures of Central Tendancy Lesson 6.05 Vocabulary Review Sum – the answer to an addition problem. Addend – the numbers you added together to get the.

Sociology: Your Compass for a New World Robert J. Brym and John Lie Wadsworth Group/Thomson Learning © 2003.

Summarizing Scores With Measures of Central Tendency

MGQ 201 WEEK 4 VICTORIA LOJACONO. Help Me Solve This Tool.

Correlation and regression lesson 1 Introduction.

10. Presenting and analysing data * Averages for discrete data * Stem and leaf diagrams * Using appropriate averages * The quartiles * Measures of spread.

 Median- middle number. If it is a even numbered list, take the middle two numbers, add them and divide by two.  Mean- average, add list of numbers.

Chapter 6 & 7 Linear Regression & Correlation

Sociology: Your Compass for a New World Robert J. Brym and John Lie Wadsworth Group/Thomson Learning © 2003.

Descriptive Statistics Descriptive Statistics describe a set of data.

Thinking About Psychology: The Science of Mind and Behavior 2e Charles T. Blair-Broeker Randal M. Ernst.

Describing Behavior Chapter 4. Data Analysis Two basic types  Descriptive Summarizes and describes the nature and properties of the data  Inferential.

1.6 Linear Regression & the Correlation Coefficient.

MEASURES of CORRELATION. CORRELATION basically the test of measurement. Means that two variables tend to vary together The presence of one indicates the.

CHAPTER 38 Scatter Graphs. Correlation To see if there is a relationship between two sets of data we plot a SCATTER GRAPH. If there is some sort of relationship.

Sociology: Your Compass for a New World Robert J. Brym and John Lie Wadsworth Group/Thomson Learning © 2003.

Sociology: Your Compass for a New World Robert J. Brym and John Lie Wadsworth Group/Thomson Learning © 2003.

Solving Compound inequalities with OR. Equation 2k-5>7 OR -3k-1>8.

Descriptive Statistics Descriptive Statistics describe a set of data.

Sociology: Your Compass for a New World Robert J. Brym and John Lie Wadsworth Group/Thomson Learning © 2003.

6, 5, 3, 6, 8 01/10/11 Mean, Median, Mode Warm Up

Date: 3-Nov-15 Title: Averages More resources available from: free-online-calculator.netfree-online-calculator.net.

Sociology: Your Compass for a New World Robert J. Brym and John Lie Wadsworth Group/Thomson Learning © 2003.

STATISTICAL ANALYSIS Created by The North Carolina School of Science and Math.The North Carolina School of Science and Math Copyright North Carolina.

 Two basic types Descriptive  Describes the nature and properties of the data  Helps to organize and summarize information Inferential  Used in testing.

Chapter 3: Averages and Variation Section 2: Measures of Dispersion.

Math Skills in Science Scientific Inquiry #4. Vocabulary Mean Mean Median Median Mode Mode.

Creating a Residual Plot and Investigating the Correlation Coefficient.

Chapter 5: Measures of Dispersion. Dispersion or variation in statistics is the degree to which the responses or values obtained from the respondents.

Sociology: Your Compass for a New World Robert J. Brym and John Lie Wadsworth Group/Thomson Learning © 2003.

3.2 Correlation. Correlation Measures direction and strength of the linear relationship in the scatterplot. Measures direction and strength of the linear.

Sociology: Your Compass for a New World Robert J. Brym and John Lie Wadsworth Group/Thomson Learning © 2003.

Averages 32. The average age of the oldest starting line-ups in a World Cup game: When Germany played Iran in the 1998 finals in France, the average.

Measures of Central Tendency Mean, Median, Mode, and Range.

Sociology: Your Compass for a New World Robert J. Brym and John Lie Wadsworth Group/Thomson Learning © 2003.

The number which appears most often in a set of numbers. Example: in {6, 3, 9, 6, 6, 5, 9, 3} the Mode is 6 (it occurs most often). Mode : The middle number.

Sociology: Your Compass for a New World Robert J. Brym and John Lie Wadsworth Group/Thomson Learning © 2003.

 A measure of central tendency (MCT) that is calculated by adding all the values of data and dividing that sum by the total number of values  The Average.

Over Lesson 2–4. Splash Screen Then/Now You solved equations with the variable on each side. Evaluate absolute value expressions. Solve absolute value.

Sociology: Your Compass for a New World Robert J. Brym and John Lie Wadsworth Group/Thomson Learning © 2003.

Mean, Median, and Mode Lesson 7-1. Mean The mean of a set of data is the average. Add up all of the data. Divide the sum by the number of data items you.

Psychology’s Statistics Appendix. Statistics Are a means to make data more meaningful Provide a method of organizing information so that it can be understood.

Measures of Central Tendency, Variance and Percentage.

Chapter 2 The Mean, Variance, Standard Deviation, and Z Scores.

Sociology: Your Compass for a New World

Data Analysis for sets of numbers

, Mean Median , Range Mode &.

Sociology: Your Compass for a New World

Describing Distributions

Definition Mean Mean – the average of a group of numbers. 2, 5, 2, 1, 5 Mean = 3.

Mean, Median, and Mode.

Mean: average 2. Median: middle number 3. Mode: most often

Measures of Central Tendency

Unit 4 Mathematics Created by Educational Technology Network

Mean, Median, and Mode.

Statistics for Science

Mean Absolute Deviation

Mean Absolute Deviation

Measures of Central Tendency

Mean Absolute Deviation

Lecture 4 Psyc 300A.

Presentation transcript:

Sociology: Your Compass for a New World Robert J. Brym and John Lie Wadsworth Group/Thomson Learning © 2003

Chapter 2 Research Methods Supplementary Slides

How to Calculate a Mean ¶Add up the Values of a Variable for Each Case. ·Divide the Sum by the Number of Cases. ¸The Result Is the Mean.

How to Calculate a Median ¶Order the Cases From the Lowest to the Highest Value of the Variable. ·Find the Midpoint of the Ordered Cases. ¸The Median Is the Value at the Midpoint. ¹Note: If the Number of Cases Is Even, the Midpoint Is the Average of the Middle Two Values.

What Is a Correlation? ¶A Measure of Association Between Variables ·Correlations Can Vary From -1 (a Perfect Negative Association) to +1 (a Perfect Positive Association). A Correlation of Zero Indicates No Association ¸If Markers in a Graph Show the Value of Cases on Two Variables, and a Straight Line Minimizes the Distance of the Markers From the Line, the Correlation Measures the Degree of Scatter

How to Calculate a Rate To Calculate the Rate of Marriage Per 100,000 People in a City in 2003: ¶Determine the Actual Number of Marriages in the City in ·Divide the Number by 100,000. ¸The Result Is the Rate of Marriage Per 100,000 People in the City in 2003.