Homework Help is Here – Start Your Trial Now!
Math
Statistics
E(x – 2)(y; – ÿ) S,Sy Σxy- (Σχ ) (Σy)/n V[Σ% - (Σx?/n] [Σyγ - (Σy)?/n]

E(x – 2)(y; – ÿ) S,Sy Σxy- (Σχ ) (Σy)/n V[Σ% - (Σx?/n] [Σyγ - (Σy)?/n]

College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter2: Functions And Graphs
Section2.6: Proportion And Variation
Problem 18E
See similar textbooks
icon
Related questions
Topic Video
Question

In Exercises, we repeat data from exercises in Section 14.2. For each exercise, determine the linear correlation coefficient by using
a. Definition on page 645.
b. Formula on page 647.
Compare your answers in parts (a) and (b).
DEFINITION
Linear Correlation Coefficient
For a set of n data points, the linear correlation coefficient, r, is defined by
where sx and sy denote the sample standard deviations of the x-values and y-values, respectively.
FORMULA
Computing Formula for a Linear Correlation Coefficient
The computing formula for a linear correlation coefficient is

x 2 4 3
y 3 5 7
E(x – 2)(y; – ÿ) S,Sy
Transcribed Image Text:E(x – 2)(y; – ÿ) S,Sy
Σxy- (Σχ ) (Σy)/n V[Σ% - (Σx?/n] [Σyγ - (Σy)?/n]
Transcribed Image Text:Σxy- (Σχ ) (Σy)/n V[Σ% - (Σx?/n] [Σyγ - (Σy)?/n]
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 8 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Hypothesis Tests and Confidence Intervals for Means
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
SEE MORE TEXTBOOKS