# Textbook Notes for Omar Rivasplata

U OF ASTAT151Omar RivasplataWinter

## STAT151 Chapter Notes - Chapter 9: Randomness, Dependent And Independent Variables

OC8450922 Page
5 Apr 2016
22
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U OF ASTAT151Omar RivasplataWinter

## STAT151 Chapter Notes - Chapter 5: Standard Deviation, Frequency Distribution, Normal Distribution

Devin-Rae Blair4 Page
10 Feb 2016
78
To standardize a value, we subtract the mean and then divide this difference by the standard deviation. The values are called standardized values, and
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U OF ASTAT151Omar RivasplataWinter

## STAT151 Chapter Notes - Chapter 1: The Who, Categorical Variable, Unita

Devin-Rae Blair3 Page
16 Jan 2016
46
Statistics is at play whenever there is data and a need for understanding something. To provide and solidify what the context is, you can organize the
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U OF ASTAT151Omar RivasplataWinter

## STAT151 Chapter Notes - Chapter 11: Dependent And Independent Variables, Blind Experiment

OC8450923 Page
6 Apr 2016
29
Researchers simply observe (e. g. did not assign students to music educaion, but simply observe them) Retrospecive study: examines the past (e. g. iden
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U OF ASTAT151Omar RivasplataWinter

## STAT151 Chapter Notes - Chapter 8: Confounding, Linear Regression, Subset

OC8450922 Page
5 Apr 2016
30
It is a good idea to look at both a histogram of the residuals and a scaterplot of the residuals vs. the predicted values. All the data must come from
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U OF ASTAT151Omar RivasplataWinter

## STAT151 Chapter Notes - Chapter 7: Wella, Scatter Plot, Lincoln Near-Earth Asteroid Research

Devin-Rae Blair4 Page
26 Feb 2016
71
7. 1: least squares: the line of best fit . The correlation says, the linear association between these two variables is fairly strong, but it doesn"t t
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U OF ASTAT151Omar RivasplataWinter

## STAT151 Chapter Notes - Chapter 6: Confounding, Scatter Plot, Dependent And Independent Variables

Devin-Rae Blair5 Page
10 Feb 2016
41
When we plot one quantitative variable versus another quantitative variable, the resultant graph is called a. This is the best graph to observe the rel
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U OF ASTAT151Omar RivasplataWinter

## STAT151 Chapter Notes - Chapter 10: The Who, Simple Random Sample, Stratified Sampling

OC8450924 Page
6 Apr 2016
38
An enire group of individuals. (but this can be impracical to examine all of them) Smaller groups of individuals selected from the populaion [a small s
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U OF ASTAT151Omar RivasplataWinter

## STAT151 Chapter Notes - Chapter 16: Confidence Interval

OC8450924 Page
22 Mar 2016
26
Interval of numbers within which parameter is likely to fall. 95% confident that parameter falls within this interval = 95% of data falls within 1. 96
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U OF ASTAT151Omar RivasplataWinter

## STAT151 Chapter Notes - Chapter 5: Standard Deviation, Unimodality

OC8450926 Page
31 Mar 2016
28
Chapter 5- the standard deviaion as a ruler and the normal model. Use the standard deviaion to judge how unusual a value is by how far it is from the m
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U OF ASTAT151Omar RivasplataWinter

## STAT151 Chapter Notes - Chapter 6: Scatter Plot, Dependent And Independent Variables, Confounding

OC8450927 Page
1 Apr 2016
26
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U OF ASTAT151Omar RivasplataWinter

## STAT 151 Chapter 1: What Is Statistics???

OC8450923 Page
29 Mar 2016
16
A way of reasoning designed to understand the informaion that has been gathered (the data) on a certain subject of interest. Helps to understand and mo
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