Канал: PSYC 2020 · Statistical Methods I and II

Nominal Ordinal Interval and Ratio Variables

Nominal Ordinal Interval and Ratio Variables

Variables Data and Scores

Variables Data and Scores

Discrete vs Continous

Discrete vs Continous

Populations vs Samples

Populations vs Samples

Paramters vs Statistics

Paramters vs Statistics

Descriptive vs Inferential Statistics

Descriptive vs Inferential Statistics

Sampling Error

Sampling Error

Interpolation

Interpolation

Frequency Distribution Tables ~ Finding the Sum of x Σx

Frequency Distribution Tables ~ Finding the Sum of x Σx

Percentiles and Percentile Ranks

Percentiles and Percentile Ranks

Frequency Distribution Tables ~ Grouped Data

Frequency Distribution Tables ~ Grouped Data

Frequency Distribution Tables ~ Proportions and Percentages

Frequency Distribution Tables ~ Proportions and Percentages

The Stem and Leaf Display

The Stem and Leaf Display

Frequency Distribution Graphs ~ Shape of a Distribution

Frequency Distribution Graphs ~ Shape of a Distribution

Frequency Distribution Tables ~ Finding Sample Size n

Frequency Distribution Tables ~ Finding Sample Size n

Polygons

Polygons

Bar Charts

Bar Charts

Histograms

Histograms

Frequency Distribution Tables ~ The Basics

Frequency Distribution Tables ~ The Basics

Frequency Distributions

Frequency Distributions

Calculating the Mean Using a Frequency Distribution Table

Calculating the Mean Using a Frequency Distribution Table

The Median

The Median

Population and Sample Means

Population and Sample Means

When to Use the Mode

When to Use the Mode

How multiplying or dividing scores by a constant affects the mean

How multiplying or dividing scores by a constant affects the mean

How adding a new score or removing a score affects the mean

How adding a new score or removing a score affects the mean

What is Central Tendency

What is Central Tendency

The Weighted Mean

The Weighted Mean

The Median ~ Example with Continuous Data

The Median ~ Example with Continuous Data

Why the Mean is Best

Why the Mean is Best

The Mode

The Mode

When to Use the Median

When to Use the Median

How adding a constant to each score affects the mean

How adding a constant to each score affects the mean

The Mean as a Balance Point

The Mean as a Balance Point

Populations vs Samples

Populations vs Samples

Finding the Sample Mean Using z

Finding the Sample Mean Using z

Using the z Score Formula to Find the Mean

Using the z Score Formula to Find the Mean

Converting a Sample Score to z

Converting a Sample Score to z

Finding the Sample Standard Deviation Using z

Finding the Sample Standard Deviation Using z

Example ~ Convert z to x

Example ~ Convert z to x

The Standard Deviation of a z Distribution

The Standard Deviation of a z Distribution

Paramters vs Statistics

Paramters vs Statistics

Example ~ Convert x to z

Example ~ Convert x to z

Variables Data and Scores

Variables Data and Scores

Where is a Score Located Within its Distribution

Where is a Score Located Within its Distribution

Using z Scores to Standardize a Distribution

Using z Scores to Standardize a Distribution

Sampling Error

Sampling Error

Convert from z to x with the z Formula

Convert from z to x with the z Formula

The z Score Formula

The z Score Formula

Descriptive vs Inferential Statistics

Descriptive vs Inferential Statistics

The Mean of a z Distribution

The Mean of a z Distribution

Converting z to a sample score x

Converting z to a sample score x

The Shape of a z Distribution

The Shape of a z Distribution

What is a z Score

What is a z Score

Comparing Scores From Different Distributions

Comparing Scores From Different Distributions

Example ~ Location of a Raw Score

Example ~ Location of a Raw Score

Example ~ Identifying z Scores

Example ~ Identifying z Scores

Using the z Score Formula to Find the Standard Deviation

Using the z Score Formula to Find the Standard Deviation

Convert from x to z with the z Formula

Convert from x to z with the z Formula

Changing the Mean and Standard Deviation of a Distribution

Changing the Mean and Standard Deviation of a Distribution

Why Measure Variability

Why Measure Variability

Example ~ Deviations From the Mean

Example ~ Deviations From the Mean

Variance to the Rescue!

Variance to the Rescue!

The Range

The Range

How Changing the Data Affects a Standard Deviation

How Changing the Data Affects a Standard Deviation

Sum of Squares ~ Computational vs Definitional Formulas

Sum of Squares ~ Computational vs Definitional Formulas

Using the Standard Deviation to Visualize a Distribution

Using the Standard Deviation to Visualize a Distribution

Example ~ Standard Deviation plus checking your answers

Example ~ Standard Deviation plus checking your answers

Sample Variance and Sample Standard Deviation

Sample Variance and Sample Standard Deviation

Review so far

Review so far

Example ~ Variance

Example ~ Variance

Deviatons from the Mean

Deviatons from the Mean

The Standard Deviation

The Standard Deviation

What is a Biased Estimator

What is a Biased Estimator

Question 04 Chapter 05

Question 04 Chapter 05

Question 06 Chapter 05

Question 06 Chapter 05

Question 07 Chapter 05

Question 07 Chapter 05

Question 05 Chapter 05

Question 05 Chapter 05

Question 08 Chapter 05

Question 08 Chapter 05

Question 09 Chapter 05

Question 09 Chapter 05

Question 02 Chapter 05

Question 02 Chapter 05

Question 03 Chapter 05

Question 03 Chapter 05

Question 10 Chapter 05

Question 10 Chapter 05

Question 01 Chapter 05

Question 01 Chapter 05

Appendix A Order of Operations 50

Appendix A Order of Operations 50

Appendix A Order of Operations 49

Appendix A Order of Operations 49

Appendix A Order of Operations 51

Appendix A Order of Operations 51

Appendix A Order of Operations 56

Appendix A Order of Operations 56

Appendix A Order of Operations 57

Appendix A Order of Operations 57

Appendix A Order of Operations 58

Appendix A Order of Operations 58

Appendix A Order of Operations 59

Appendix A Order of Operations 59

Appendix A Order of Operations 60

Appendix A Order of Operations 60

Appendix A Order of Operations 52

Appendix A Order of Operations 52

Appendix A Order of Operations 53

Appendix A Order of Operations 53

Appendix A Order of Operations 55

Appendix A Order of Operations 55

Appendix A Order of Operations 54

Appendix A Order of Operations 54

Appendix A Order of Operations 42

Appendix A Order of Operations 42

Appendix A Order of Operations 37

Appendix A Order of Operations 37

Appendix A Order of Operations 41

Appendix A Order of Operations 41

Appendix A Order of Operations 40

Appendix A Order of Operations 40

Appendix A Order of Operations 48

Appendix A Order of Operations 48

Appendix A Order of Operations 46

Appendix A Order of Operations 46

Appendix A Order of Operations 38

Appendix A Order of Operations 38

Appendix A Order of Operations 39

Appendix A Order of Operations 39

Appendix A Order of Operations 47

Appendix A Order of Operations 47

Appendix A Order of Operations 43

Appendix A Order of Operations 43

Appendix A Order of Operations 45

Appendix A Order of Operations 45

Appendix A Order of Operations 44

Appendix A Order of Operations 44

Question 01 Chapter 02

Question 01 Chapter 02

Question 02 Chapter 02

Question 02 Chapter 02

Question 03 Chapter 02

Question 03 Chapter 02

Question 04 Chapter 02

Question 04 Chapter 02

Question 05 Chapter 02

Question 05 Chapter 02

Question 06 Chapter 02

Question 06 Chapter 02

Question 07 Chapter 02

Question 07 Chapter 02

Question 08 Chapter 02

Question 08 Chapter 02

Question 09 Chapter 02

Question 09 Chapter 02

Question 10 Chapter 02

Question 10 Chapter 02

Question 11 Chapter 02

Question 11 Chapter 02

Question 12 Chapter 02

Question 12 Chapter 02

Question 13 Chapter 02

Question 13 Chapter 02

Question 14 Chapter 02

Question 14 Chapter 02

Question 15 Chapter 02

Question 15 Chapter 02

Question 16 Chapter 02

Question 16 Chapter 02

Question 17 Chapter 02

Question 17 Chapter 02

Question 18 Chapter 02

Question 18 Chapter 02

Question 19 Chapter 02

Question 19 Chapter 02

Question 20 Chapter 02

Question 20 Chapter 02

Question 21 Chapter 02

Question 21 Chapter 02

Question 22 Chapter 02

Question 22 Chapter 02

Question 23 Chapter 02

Question 23 Chapter 02

Question 24 Chapter 02

Question 24 Chapter 02

Question 25 Chapter 02

Question 25 Chapter 02

Question 26 Chapter 02

Question 26 Chapter 02

Question 27 Chapter 02

Question 27 Chapter 02

Question 28 Chapter 02

Question 28 Chapter 02

Question 29 Chapter 02

Question 29 Chapter 02

Question 30 Chapter 02

Question 30 Chapter 02

Question 31 Chapter 02

Question 31 Chapter 02

Question 32 Chapter 02

Question 32 Chapter 02

Question 33 Chapter 02

Question 33 Chapter 02

Question 34 Chapter 02

Question 34 Chapter 02

Question 35 Chapter 02

Question 35 Chapter 02

Question 36 Chapter 02

Question 36 Chapter 02

Question 37 Chapter 02

Question 37 Chapter 02

Question 38 Chapter 02

Question 38 Chapter 02

Question 39 Chapter 02

Question 39 Chapter 02

Question 40 Chapter 02

Question 40 Chapter 02

Appendix A Order of Operations 23

Appendix A Order of Operations 23

Appendix A Order of Operations 17

Appendix A Order of Operations 17

Appendix A Order of Operations 19

Appendix A Order of Operations 19

Appendix A Order of Operations 28

Appendix A Order of Operations 28

Appendix A Order of Operations 33

Appendix A Order of Operations 33

Appendix A Order of Operations 25

Appendix A Order of Operations 25

Appendix A Order of Operations 32

Appendix A Order of Operations 32

Appendix A Order of Operations 35

Appendix A Order of Operations 35

Appendix A Order of Operations 24

Appendix A Order of Operations 24

Appendix A Order of Operations 14

Appendix A Order of Operations 14

Appendix A Order of Operations 12

Appendix A Order of Operations 12

Appendix A Order of Operations 11

Appendix A Order of Operations 11

Appendix A Order of Operations 34

Appendix A Order of Operations 34

Appendix A Order of Operations 26

Appendix A Order of Operations 26

Appendix A Order of Operations 20

Appendix A Order of Operations 20

Appendix A Order of Operations 13

Appendix A Order of Operations 13

Appendix A Order of Operations 21

Appendix A Order of Operations 21

Appendix A Order of Operations 29

Appendix A Order of Operations 29

Appendix A Order of Operations 15

Appendix A Order of Operations 15

Appendix A Order of Operations 18

Appendix A Order of Operations 18

Appendix A Order of Operations 31

Appendix A Order of Operations 31

Appendix A Order of Operations 27

Appendix A Order of Operations 27

Appendix A Order of Operations 36

Appendix A Order of Operations 36

Appendix A Order of Operations 22

Appendix A Order of Operations 22

Appendix A Order of Operations 30

Appendix A Order of Operations 30

Appendix A Order of Operations 16

Appendix A Order of Operations 16

Question 39 Chapter 01

Question 39 Chapter 01

Question 02 Chapter 01

Question 02 Chapter 01

Question 38 Chapter 01

Question 38 Chapter 01

Question 33 Chapter 01

Question 33 Chapter 01

Question 28 Chapter 01

Question 28 Chapter 01

Question 01 Chapter 01

Question 01 Chapter 01

Question 04 Chapter 01

Question 04 Chapter 01

Question 37 Chapter 01

Question 37 Chapter 01

Question 40 Chapter 01

Question 40 Chapter 01

Question 03 Chapter 01

Question 03 Chapter 01

Question 36 Chapter 01

Question 36 Chapter 01

Question 27 Chapter 01

Question 27 Chapter 01

Question 20 Chapter 01

Question 20 Chapter 01

Question 21 Chapter 01

Question 21 Chapter 01

Question 06 Chapter 01

Question 06 Chapter 01

Question 18 Chapter 01

Question 18 Chapter 01

Question 24 Chapter 01

Question 24 Chapter 01

Question 34 Chapter 01

Question 34 Chapter 01

Question 05 Chapter 01

Question 05 Chapter 01

Question 10 Chapter 01

Question 10 Chapter 01

Question 19 Chapter 01

Question 19 Chapter 01

Question 25 Chapter 01

Question 25 Chapter 01

Question 14 Chapter 01

Question 14 Chapter 01

Question 29 Chapter 01

Question 29 Chapter 01

Question 15 Chapter 01

Question 15 Chapter 01

Question 23 Chapter 01

Question 23 Chapter 01