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olganol [36]
3 years ago
5

Suppose that we have the least squares regression line y = 3 + 2x and that the sum of the squares of the errors (sse) for this l

ine is 13,712. what can be said about the sum of the squares of the errors (sse) for this data set and the line y = 3 + 2.5x?
Mathematics
1 answer:
aliina [53]3 years ago
3 0
The least squares regression is a statistical technique to fit your data points to a curve or line so that you can express the behavior of your data in an equation according to the curve or line. This can be achieved by minimizing the sum of the squares. Since the sse is still very large, 13,712, that means that the model used to fit the data is not valid. Through this statistical method, the model used could be deemed inconclusive.
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Answer:

b

Step-by-step explanation:

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According to the table, how many people got 8 or more hours of sleep?
zalisa [80]
I believe the answer is 17.
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Which algebraic expression shows the average melting points of helium, hydrogen, and neon if h represents the melting point of h
LenKa [72]
Average = mean = sum of the values / number of data

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3 years ago
Read 2 more answers
Question 4
Elanso [62]

Answer:

a A = 30 + 0.45 n

b A = 90.3

c 0 customers

Step-by-step explanation:

Given

Base\ Amount = 30

Rate = 0.45 per customer

Solving (a): Amount (A) on n customers

This is calculated as:

A = Base\ Amount + Rate * n

A = 30 + 0.45 * n

A = 30 + 0.45 n

Solving (b): Amount on 134 customers

In this case: n = 134

So:

A = 30 + 0.45 * 134

A = 30 + 60.3

A = 90.3

Solving (c): Customers at noon.

At noon, the amount is 30.

So:

A = 30 + 0.45 n

30 = 30 + 0.45n

Collect like terms

0.45n = 30 - 30

0.45n =0

n = 0

6 0
3 years ago
Paul has a stock portfolio worth $21,000. His home is valued at $365,000. His car is valued at $19,000. He owes $362,000 on his
kompoz [17]

Answer:

Paul has negative worth of $2,900

His statement is invalid as he did not consider all assets and debts in aggregate.

Step-by-step explanation:

The net worth of Paul is the total asset owned by him less the total of debts owed by him.

Paul's total assets can computed thus:

Stock portfolio                 $21,000

Home worth                     $365,000

Car worth                          $19,000

Total assets                       $405,000

Paul's total debts can be computed as follows:

Mortgage loan                     $362,000

Car loan                                $16,250

credit card debt                     $11,750

Student loan                          $17,900

Total debts                             $407,900

The amount of debts owed by Paul is $2,900($405,000-$407,900) more than his asset worth,which implies that Paul is indebted to the tune of $2,900,hence has negative worth.

6 0
3 years ago
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