person's weight (measured in Kilograms) divided by his/her height (measured in meters) squared. We reco past week, as following: BMI Hours of exercise What is the value of r? 18.4 3.0 19.6 2.5 20.5 4.0 27.6 2.7 30.6 0.5
person's weight (measured in Kilograms) divided by his/her height (measured in meters) squared. We reco past week, as following: BMI Hours of exercise What is the value of r? 18.4 3.0 19.6 2.5 20.5 4.0 27.6 2.7 30.6 0.5
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![Body mass index (BMI) is a measure of body composition, which can be used to assess if someone is underweight, healthy weight, overweight but not obese, or obese. It is calculated as a person's weight (measured in kilograms) divided by his/her height (measured in meters) squared. We recorded 5 students’ BMI values and the numbers of hours they exercised in the past week, as follows:
\[
\begin{array}{|c|c|c|c|c|c|}
\hline
\text{BMI} & 18.4 & 19.6 & 20.5 & 27.6 & 30.6 \\
\hline
\text{Hours of exercise} & 3.0 & 2.5 & 4.0 & 2.7 & 0.5 \\
\hline
\end{array}
\]
What is the value of \( r \)?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6baa99e6-b6c0-489e-a5ff-d8ed67d8bbb3%2F8205ec18-89e1-4214-af1f-e35a7bf1100b%2F6z6aek_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Body mass index (BMI) is a measure of body composition, which can be used to assess if someone is underweight, healthy weight, overweight but not obese, or obese. It is calculated as a person's weight (measured in kilograms) divided by his/her height (measured in meters) squared. We recorded 5 students’ BMI values and the numbers of hours they exercised in the past week, as follows:
\[
\begin{array}{|c|c|c|c|c|c|}
\hline
\text{BMI} & 18.4 & 19.6 & 20.5 & 27.6 & 30.6 \\
\hline
\text{Hours of exercise} & 3.0 & 2.5 & 4.0 & 2.7 & 0.5 \\
\hline
\end{array}
\]
What is the value of \( r \)?
Expert Solution
Step 1
Using given information
We have to find out the correlation coefficient r
r=
r < 0 There is a negative relationship between x and y .
r = 0 There is no relationship between x and y .
r > 0 There is a positive relationship between x and y .
Step by step
Solved in 2 steps
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