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Fed [463]
3 years ago
13

Does the residual plot indicate that a line is a good model for predicting the height of girls from their ages? Explain.

Mathematics
1 answer:
galben [10]3 years ago
8 0
A plot of residuals (vertical deviations from the regression line) shows the errors or lack of fit, so it would indicate a good fit if the residuals are small, vs. over fit if they are large. Due to age related growth short pre teen, and a plateau after age 21, I would expect a linear regression would offer estimate age 5.5 years.
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Tristan and two of his friends purchased tickets to a school play. Tristan paid for all the tickets with a $50.00 bill and recei
Elza [17]

Answer: 27.00

Step-by-step explanation:

$50 - $23 = $27

3 0
3 years ago
Read 2 more answers
HELP PLEASE I NEED THIS DONE ASAP
Nata [24]

a). 0.45 with a line over the 45 means 0.45454545454545... forever.

It's equivalent to  45/99  which is  <em>5/11</em> .

b). 0.45 with a line over the 5 means 0.455555555... forever.

It's equivalent to (0.4 + 0.555555.../10)

The 0.4 part is  4/10

The 0.5555555555.../10 part is  5/90 .

(4/10) + (5/90) = <em>41/90 </em>

c). 0.45 means 45/100 .  That's <em> 9/20</em> .

I don't think you're supposed to be posting unit test questions on Brainly.

6 0
3 years ago
Suppose that A is nonsingular. Prove that its inverse A-1 is unique. [Hint: Show that if there exists two matrices, B and C, suc
Bogdan [553]

Answer with Step-by-step explanation:

Let A is non-singular

\mid A\mid\neq 0

We have to prove that A^{-1} is unique.

Suppose B and C are inverse of A such that

BA=I and AC=I

By using property AA^{-1}=A^{-1}A=I

C=C

(BA)C=B(AC)

I\cdot C=B\cdot I

C=B

Hence, the inverse of A is unique.

4 0
3 years ago
What is the solution to (4/2)4 + (1 + 3)?
julsineya [31]
I think it may be 12
4 0
3 years ago
What is the domain of the function 2 sqr (x-6)
meriva

Answer:

36? I think I’m not

Positive

Step-by-step explanation:

3 0
2 years ago
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