The scatterplot below shows the relationship between left forearm (LeftArm) and right forearm (RtArm) lengths, both measured in centimeters, for a random sample of college students. Which one of the following answer options must be the regression equation for this data set? 31 30 29 28 27 26 25 - 24 23 22 22 24 26 28 30 RtArm LeftArm

The scatterplot below shows the relationship between left forearm (LeftArm) and right forearm (RtArm) lengths, both measured in centimeters, for a random sample of college students. Which one of the following answer options must be the regression equation for this data set? 31 30 29 28 27 26 25 - 24 23 22 22 24 26 28 30 RtArm LeftArm

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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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 predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.

Question

The scatterplot below shows the relationship between left forearm (LeftArm) and right
forearm (RtArm) lengths, both measured in centimeters, for a random sample of college
students. Which one of the following answer options must be the regression equation for
this data set?
31
30-
29 -
28-
27
26 -
25
24-
23
22
22
24
26
28
30
RtArm
A. Predicted left forearm length
B. Predicted left forearm length
C. Predicted right forearm length = 1.22 – 0.95 (left forearm length)
D. Predicted right forearm length = 1.22 + 0.95 (left forearm length)
= 1.22 – 0.95 (right forearm length)
1.22 + 0.95 (right forearm length)
LeftArm
8-

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