Data Basics: Observations, Variable, and Data Matrices
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Effective presentation and description of data is a first step in most analyses. This section introduces one structure for organizing data as well as some terminology that is used throughout statistics.
Why does the audio here (Lecturer's voice) sound like its playing at a choppy 1.5 x normal speed? A bit distracting from learning.
joejohnoptimus
If you're having an issue with the speed at which he's speaking, try going into the settings and slowing the speed down to 0.75. It worked well for me.
narielboy
Hello,
I'm a graduate student from Bogazici University, Istanbul, Turkey who is also currently taking "Statistics with R" course from Coursera. Over there, we're advised to use Openintro materials. However, when I started watching your videos such as this one above, I realized that your videos are not very accesible for blind users. I'm a low vision person and I see that you don't describe your figures, tables, and graphs for blind students in the videos. If you don't do it, we will not have a clear sense of what you explain. I kindly request you to modify all of your videos vis-à-vis the principle of accessibility for all not just visioned individuals.
cagrgokcek
I love the information provided in this clip; though I wish the presenter could have slower the speed of his speech a little.
ngao-thelanh
Hi! First, I really appreciate the effort and initiative on providing such awesome material about an important topic for researchers and grad students. I have a question about scatterplots: Is the conclusion about relationship entirely based on pattern visualization? Is there any extra statistical tool to confirm this relationship? I feel like just looking at the dots may be imprecise or not enough in some cases.
jeandersonbc
Wow this video answered alot of the questions i had about datasets.
stevemagana
It was an interesting video presentation. I liked it
christineakoru
I can't believe you got Brian David Gilbert to narrate a statistics video in a sad voice!
kyrawr
In relationship to the book -- you skipped the smoking ban variable and its importance of defining ordinal and nominal
jaymichael
Even thought the voice is difficult to understand, I was still able to gather enough information.
Mylife_
66% differential in the Wrong direction. Better learn a lot more about Stents before considering one.
