If you print the residuals for StudentSurvey.modelGPA, what will you see?A) 3.158
B) for each participant in the study, the difference between his/her GPA and the mean GPA
C) for each participant in the study, the model (i.e. the mean) for GPA
D) the GPA of each participant in the study

Answers

Answer 1

Answer:

Answer:

B) For each participant in the study, the difference between his/her GPA and the mean GPA.

Step-by-step explanation:

Residuals in a regression model represent the differences between the observed values (in this case, student GPAs) and the predicted values (the mean GPA predicted by the model). So, option B is the correct description of what you will see when you print the residuals.

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2| x - 3 | > 8, 2| x - 3 | < -8 Sovle the inequality involving absolute value? I don't understand how to get the right answer

Answers

divide both sides by 2

|x-3|>4 and |x-3|<-4
ok so |x-3|<-4 is false, since |x|≥0 always

so we have
|x-3|>4
now assume
x-3>4 and
x-3<-4

x-3>
add 3
x>7

x-3<-4
add 3
x<-1

so
-1>x and x>7

so basically it is all numbers from -∞ to +∞ except from -1 to 7
in interval notaion
(-∞,-1)U(7,∞)

S={x|x<-1 or x>7}

X >7 and X > -1 that would be the answer

What is the slope-intercept form of the function that contains the point (1, –2) and has a slope of –3?Y= __ x + __

Answers

Well, from the info given, you cannot automatically put it into slope intercept form. You have to put it into point slope form first and then convert it.

Point slope form looks like this: y - y1 = m(x - x1)

Now, with the info it looks like this: y - (-2) = -3(x - 1)

Now you distribute and change the - (-2) to +2 (because subtracting a negative is the same as adding a positive) and you get: y + 2 = -3x - 3

Now, you subtract 2 to get y by itself (we are converting now)

y = -3x - 5

Hope this helps!

Can someone please help me with this, marking brainliest and giving 15 points!The distance traveled of a coin dropped from a tall building is modeled by the equation d(t) = 4.9t2 where d equals the distance traveled at time t seconds and t equals the time in seconds. What does the average rate of change of d(t) from t = 3 to t = 6 represent? (2 points)

The coin falls down with an average speed of 132.3 meters per second from 3 seconds to 6 seconds.

The coin falls down with an average speed of 44.1 meters per second from 3 seconds to 6 seconds.

The coin travels an average distance of 132.3 meters from 3 seconds to 6 seconds.

The coin travels an average distance of 44.1 meters from 3 seconds to 6 seconds.

Answers

change in distance = 176.4 - 44.1 = 132.3
change in time = 6 - 3 = 3

The object travels 132.3 meters in 3 seconds

the speed is the ratio of the two values

speed = distance/time
speed = 132.3/3
speed = 44.1 meters per second

This is the average speed of the object from t = 3 to t = 6 seconds. This is equivalent to the slope of the straight line through the two points.

The answer is The coin falls down with an average speed of 44.1 meters per second from 3 seconds to 6 seconds.`

What is least to greatest? 4.3, 0.43 & 3.4

Answers

Descending (least to greatest) order would be 0.43, 3.4, 4.3

Ascending order (greatest to least) would be 4.3, 3.4, 0.43

Which fraction (in simplest form) is equivalent to 0.49?A.12/25
B.49/100
C.7/50
D.10/49

Answers

0.49 as a fraction is 49/100

Your answer is B: 49/100

Simplify square root of 3 times square root of 21

Answers

Step-by-step explanation: To multiply the square root of 3 times the square root of 21, we simply multiply the numbers that are inside the square roots together.

So, root 21 × root 3 equals root 63.

Next, we simplify the square root of 63. 63 factors as 3 x 21 and 21 factors as 3 x 7. So we have a pair of 3's which means a 3 can come out of the radical and the 7 doesn't pair up stays in the radical so our final answer is $\sqrt[3]{7}$ .