### Course Grade vs. Absences#### Understanding the Relationship Between Course Grades and AbsencesConsider the following graph. What can you say about the correlation of x and y?#### Graph: Course Grade vs. Absences![Graph: Course Grade vs. Absences](example-image.png)**Description:**- **X-axis:** Number of Absences (0 to 16)- **Y-axis:** Course Grade (0 to 100)The graph displays data points representing individual observations of students' course grades in relation to the number of absences they have had. #### Observations:- As the number of absences increases, the course grade tends to decrease.- The data points suggest a downward trend.#### Question:What can you say about the correlation of x (Absences) and y (Course Grade)?- A weak negative correlation- A strong negative correlation- A weak positive correlation- A strong positive correlation- No correlationBased on the visualization, it appears that there is a **strong negative correlation** between the number of absences and course grades. This indicates that students who miss more classes tend to have lower grades.

We have to identify correlation.

Consider the following graph. What can you say about correlation of x and y? Course Grade vs. Absencies 100 80 60 40 20 4 10 12 14 16 O A weak negative correlation O A strong negative correlation O A weak positive correlation O A strong positive correlation No correlation

Consider the following graph. What can you say about correlation of x and y? Course Grade vs. Absencies 100 80 60 40 20 4 10 12 14 16 O A weak negative correlation O A strong negative correlation O A weak positive correlation O A strong positive correlation No correlation

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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sub-part 3. please help me with the rest. thanks
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UnattemptedQuestion 1Expand PreviousNext The data below was collected from manufacturer advertisements of their vehicles' horsepower and highway gas mileage (mpg.). Use this data to answer the following questions. x 158 250 340 350 390 190 220 y 33 28 15 17 11 35 42 1. Find the p-value to determine if there is a linear correlation between horsepower and highway gas mileage (mpg). If there is a linear correlation, write the correlation coefficient below if there is a linear correlation, write the regression equation below. Using the data shown above, predict the the highway gas mileage (mpg) for a car that has a horsepower of 225 If there is a linear correlation, what percentage of variation in highway gas mileage (mpg) can be explained by horsepower?
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