The correlation coefficient for practicing violin and getting better grades in a group of people is 0.8. analyze the following statement.

playing violin causes students to get better grades.

is this a reasonable conclusion?

yes; students who play violin must necessarily get better grades

yes; the correlation coefficient is above 0.5, so that implies causation

no; playing violin and earning better grades are completely unrelated

no; even though there is a strong positive correlation, playing violin doesn't cause students to get better grades

No; even though there is a strong positive correlation, playing violin doesn't cause students to get better grades

Step-by-step explanation:

Causation describes a relationship between two quantities where one quantity is effected by the other.

Given: The correlation coefficient for practicing violin and getting better grades in a group of people is 0.8.

Since 0.8 is near to 1, hence it shows a strong correlation.

But correlation does not imply causation because if just two quantities correlate does not necessarily means that one causes the other.

Hence, the given conclusion is not reasonable .

one that is bigger than 3 1/2

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is