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34kurt
3 years ago
9

D. Based on the residuals, is your regression line a reasonable model for the data? Why or why

Mathematics
1 answer:
Crazy boy [7]3 years ago
3 0

Answer:

The regression line having minimum residuals, actual values closest to estimated regression line values : depicts the most reasonable data model.

Step-by-step explanation:

Regression is a statistical tool depicting cause effect relationship between independent variable(s) (X) , dependent variable. (Y)

Population Regression Function is the conditional expectation of Yi, based on given Xi.

E (Yi / Xi ) = \beta 0 + \beta 1 Xi ; where Y's value is based on given X values

Sample Regression Function is estimated relationship between Y & X, based on sample study.

y = b0 + b1x1 ; where y is a estimate of Y, b0 & b1 estimates of \beta 0 ,  \beta 1 .

In estimating through SRF: there are residuals, i.e differences between actual & estimated values. The most reasonable regression model  (regression line) is which minimises the residual values, i.e actual values are closest possible to regression estimated values.

For this matter, classical linear regression model uses 'Ordinary Least Squares' regression, which minimises the residual's squared values.

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If a point is above the origin, it’s y coordinate must be positive or negative ?
balandron [24]

Answer:

Positive.

Step-by-step explanation:

The y coordinate is positive because on a graph, the positive part of the y-axis is above the origin while the negative part of it is below the origin.

3 0
3 years ago
Would like to know how to do this problem.
bogdanovich [222]

well it would be very helpful thank you

8 0
3 years ago
the coordinates of the endpoints of line AB and line CD are A(x1, y1), B(x2, y2), C(X3,Y3), and D(x4, y4). which condition prove
pogonyaev
Find the slope for the two lines and state that they are equal (condition for parallel lines)

Slope of line AB

[y2 - y1] / [x2 - x1]

Slope of line CD

[y4 - y3] / [x4 - x3]

Condition

[y2 - y1] / [x2 - x1] = [y4 - y3] / [x4 - x3]


3 0
4 years ago
HELP ASAP!!
Alecsey [184]
The common difference equals:
10 (as 14-4=10, 24-14=10…)

The explicit formula of this sequence is:
Because Tn=4+(n-1)•10
T1=4+(1-1)•10=4
T2=4+(2-1)•10=14
.
.
.
Therefore T8=4+(8-1)•10=74

So the answer is the second option:)
6 0
2 years ago
Find the LCM of 132 and 60 using Prime Factorization ?
Sav [38]

Answer:

660

Step-by-step explanation:

First, let's find the prime factorization for both numbers.

132 = 11 x 12

12 = 3 x 4

4 = 2 x 2

<u>132 = 2 x 2 x 3 x 11</u>

60 = 5 x 12

12 = 3 x 4

4 = 2 x 2

<u>60 = 2 x 2 x 3 x 5</u>

Now, to find the lowest common multiple, we just need to multiply each number the most times it is seen in either number.

<u>132 = 2 x 2 x 3 x 11</u>

<u>60 = 2 x 2 x 3 x 5</u>

The first number is both is 2, which appears at most twice in either list so we will multiply two 2s to find the LCM.

Both numbers also have at most one 3, one 5, and one 11, so to find our LCM, we just need to multiply all these numbers together:

2 x 2 x 3 x 5 x 11 = 660

The LCM of 132 and 60 is 660.

Hope this helped!

4 0
3 years ago
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