Best Line of Fit

Best Line of Fit

8th Grade

20 Qs

quiz-placeholder

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Best Line of Fit

Best Line of Fit

Assessment

Quiz

Mathematics

8th Grade

Medium

Created by

Anthony Clark

Used 1+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is a line of best fit used for?

To make predictions

To make the graph look pretty

To connect the points

To make it look like you know what you are doing

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Determine the predicted income if 22 hours were worked on an assembly job.

$207.30

$449.60

$691.90

$543.30

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which graph has a correlation coefficient (r) of about -.6 ?

a

b

c

d

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What does the value, r= -0.89, tell us about the linear relationship of two quantitative variables?

Strong positive

Weak positive

Strong negative

Weak negative

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image
y = 1.45x + 22
y = -2x + 15
y = 1.33x + 30
y = -1.5x + 24

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Is this line an accurate line estimate of best fit for the data?

Yes

No

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What is the equation of the line of best fit?

y= 6x + 2

y = -2x +6

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