Search for tag: "Statistics"
1.6 Variance and standard deviation | Basic Statistics | Exploring Data | UvAThis video discusses two other measures of variability that are often used in statistical studies: the variance and the standard deviation. You learn how to calculate the variance and standard…
From Sander Birkhoff
0 likes
8 plays
0
|
|
7.5 Significance test and confidence interval | Basic Statistics | Significance Tests | UvAThis video shows you that two methods of inferential statistics, confidence intervals and significance tests, are closely related.
From Sander Birkhoff
0 likes
1 plays
0
|
|
5.1 Sample and population | Basic Statistics | Sampling Distributions | UvAIn this video Matthijs explains the difference between sample and population. You also learn what the difference between sample statistics and inferential statistics is. This course consists…
From Sander Birkhoff
0 likes
3 plays
0
|
|
4.4 The variance of a random variable | Basic Statistics | Probability Distributions | UvAThis video explains how the variance of a random variable is calculated. You also learn what happens with the variance when adjusting a random variable or when combining different random variables.
From Sander Birkhoff
0 likes
2 plays
0
|
|
4.3 The mean of a random variable | Basic Statistics | Probability Distributions | UvAThis video explains how to calculate the mean of a probability distribution. You also learn what happens with the mean when adjusting a random variable or when combining different random variables.
From Sander Birkhoff
0 likes
2 plays
0
|
|
1.8 Example (summarizing this module) | Basic Statistics | Exploring Data | UvAIn this video Matthijs discusses an example in which he uses all the core elements of this module. In the example, your data matrix contains the average grades in chemistry of 8 high schools.…
From Sander Birkhoff
0 likes
1 plays
0
|
|
1.7 Z-scores | Basic Statistics | Exploring Data | UvAIn this video you learn how to compute a Z-score and why it is useful. Sometimes, researchers want to know if a certain observation is common or exceptional. To find out they calculate the number of…
From Sander Birkhoff
0 likes
4 plays
0
|
|
1.5 Range, interquartile range and box plot | Basic Statistics | Exploring Data | UvATo describe a distribution you need more information than the measures of central tendency. You also need information about the variability (or dispersion) of the data. Matthijs discusses the…
From Sander Birkhoff
0 likes
2 plays
0
|
|
1.4 Mode, median and mean | Basic Statistics | Exploring Data | UvANext to summarizing a distribution by means of graphs, it can also be useful to summarize the center of your distribution. In this video Matthijs discusses three main ways to do this: the mode, mean…
From Sander Birkhoff
0 likes
3 plays
0
|
|
1.3 Graphs and shapes of distributions | Basic Statistics | Exploring Data | UvAIn this video Matthijs shows you how to summarize and present data from frequency tables into different types of graphs. He discusses the (dis)advantages of bar graphs vs. pie charts, dot plots vs.…
From Sander Birkhoff
0 likes
5 plays
0
|
|
1.2 Data matrix and frequency table | Basic Statistics | Exploring Data | UvAThis video explains what a data matrix and frequency table are and how you can use them with different types of variables. The video also shortly touches upon what to do with missing values and how…
From Sander Birkhoff
0 likes
5 plays
0
|
|
1.1 Cases, variables and levels of measurement | Basic Statistics | Exploring Data | UvAThis video explains the difference between cases and variables. Variables can be measured on different levels. There are categorical variables (nominal, ordinal) and quantitative variables (interval,…
From Sander Birkhoff
0 likes
9 plays
0
|
|
1.0 Introduction to the course | Basic Statistics | UvAEmiel van Loon and Matthijs Rooduijn give a quick introduction to the outline of the UvA course Basic Statistics. This course consists of seven modules and each module has several videos. To find the…
From Sander Birkhoff
0 likes
33 plays
0
|
|
6.7 The runs test | Inferential Statistics | Non-parametric tests | UvAThis video explains how the runs test works, which you can use to answer the question whether a sequence of categorical or numerical data is random based on the sequence of the individual labels.
From Sander Birkhoff
0 likes
2 plays
0
|
|
6.6 Spearman's rank correlation coefficient | Inferential Statistics | Non-parametric tests | UvAThis video explains when to apply and how to calculate the Spearman's rank correlation coefficient. It is often treated as the non-parametric counterpart of the Pearson's correlation…
From Sander Birkhoff
0 likes
5 plays
0
|