MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Concept explainers

Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as p…
Question
Is there a relationship between the weight and price of a mountain​ bike? The following data set gives the weights and prices for ten mountain bikes. Let the explanatory variable x be the weight in pounds and the response variable y be the​ bike's price.
 
Weight​ (LB)
3131
3636
3030
3535
2929
2929
2828
3030
3232
3535
 
Price​ ($)
980980
150150
11001100
190190
470470
680680
580580
550550
320320
930930
 
 
a.  How you explain the slope?
 y = 1912.08 + -41.81x
 
 
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