Scatter diagrams and linear correlation
ID the variables

When we have 2 sets of data, we must ID which set is the independent set / EXPLANATORY (X)
and which set of data is the dependant set (response y )
These var are the same as they were in algebra w
1.
The following list represents 12 sample IQ scores
90, 83,102, 98, 110, 94,100, 93, 85,104, 99, 88
A.
B.
Create a Frequency Distribution Table with 4 CLASSES [ Class Limits / Frequency / R. Freq / C. Freq / Midpt]
Create a RELATIVE FREQUENCY HISTOGRAM [
Chapter 9 Correlation and Regression
Scatter Diagrams and Linear Correlation
In Chapter 3, we took 1 set of sample data and computed numeric representations.
Instead of looking at only 1 set of data, chapter 9 introduces the idea of looking at 2 sets of d
Chapter 9 Essential Question Homework
Basic Statistics
Name: _
RWU wanted to see if a relationship exists between the number of days a student is absent from class and the final
grade received for a sample of college students in a Basic Statistics course
Chapter 7
Estimation using Confidence Intervals
Confidence Intervals for the population mean,
, when the population standard
deviation is known, .
Working backwards to find the sample size necessary to reduce the margin of error
Confidence Intervals for
Discrete Probability Distributions and additional properties
Introduction to Random Variables and Probability Distributions
Random Variable
Discrete Random Variable [ Chapter 5 ]
Continuous Random Variable [ Chapter 6 ]
Probability Distribution
Discrete P
E.Q. HW 7 Chapter 7 Confidence Intervals
1.
Basic Statistics
Name: _
Of all cars made in the United States, they are either MANUAL or AUTOMATIC. A sample of 300 cars revealed that 138 were
MANUAL.
A. What would be the POINT ESTIMATE for this problem? Are
Chapter 4 Elementary Probability Theory
What is Probability?
Definition of Probability
Rules of Probability
3 types of Probability
Probability Model
Complement
Some Probability Rules Compound Events
And Independent Events
And Dependent Events
Or Mutually
Number
Year
1
2367
Number
Year
1900
1249
2 Bridge A
Bridge B
2800
4300
3 Whole Sale
20%
Absolue Change Relavite Change
2010
1118
47%
Shorter
1500
34.9%
Retail Cost
100%
120.0%
1.2
4 https:/www.easycalculation.com/finance/aprtoapy.php
5 RATE
START AGE