sfernandez0622
contestada

A student is assessing the correlation between the average number of hours of internet browsing and average score on a math test. The table below shows the data:


Number of hours of internet browsing
(x) 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
Score on math test
(y) 95 94 93 92 91 90 89 88 87 86


Part A: Is there any correlation between the average number of hours of internet browsing and average score on the math test? Justify your answer. (4 points)

Part B: Write a function which best fits the data. (3 points)

Part C: What does the slope and y-intercept of the plot indicate? (3 points)

Respuesta :

ogorwyne

Yes there is a correlation between the hours of internet browsing and the average score on the math test.

How to solve for the correlation of variables

a. From the data we have, we can see that as the number of the internet browsing hours increases by 0.5, the test scores fall by 1. So we conclude that there is a correlation.

b. A function that best fits this data is

Test score = f(browsing hours)

This tells us that the test score is a function of a students hours spent browsing the internet.

c. On this table the y intercept is the point where x is at 0. When x is 0, we can see that y is 95. This tells us that a student does his best in the math test if he spends 0 hours on the internet.

Read more on regression lines here:

https://brainly.com/question/732489

#SPJ1

Otras preguntas