Weeks on Market Selling Price (in thousands of $) 18 125 48 73 51 61 33 76.5 56 53 9. 133 25 94 47 90 32 107 27 84 23 54 16 102

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.4: Scatter Plots And Line Of Fit
Problem 1GP
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Need help with 4, 5, and 6 both papers go hand in hand

Calculator instructions, if you need them, are as follows:
Input "Weeks on Market" into L1 and "Selling Price" into L2.
Press [STAT]
Use arrows to go over to CALC menu
Then use arrows to go down to 4: LinReg (ax+b)
Depending on which version you have you need to tell the calculator which lists your data is in.
Then
press the [ENTER] key
2. What is the value of the correlation coefficient?
3. Correlation is an indicator of strength and direction. Does your interpretation of this correlation agree
the answer for strength and direction that you found by reading the graph on page 1? Explain.
4. Using your calculator output from LinReg (ax+b), to get the coefficients for the regression line.
a = slope =
%3D
b=y-intercept =
%3D
%3D
5. Write out the regression equation:
6. Using the regression equation, predict the selling price (in thousands of $) for a condo that has been on
the market for 35 weeks.
7. Using the regression equation, predict the selling price (in thousands of $) for a condo that has been on
the market for 10 weeks.
8. Using the regression equation, predict the selling price (in thousands of $) for a condo that has been on
the market for 72 weeks.
Transcribed Image Text:Calculator instructions, if you need them, are as follows: Input "Weeks on Market" into L1 and "Selling Price" into L2. Press [STAT] Use arrows to go over to CALC menu Then use arrows to go down to 4: LinReg (ax+b) Depending on which version you have you need to tell the calculator which lists your data is in. Then press the [ENTER] key 2. What is the value of the correlation coefficient? 3. Correlation is an indicator of strength and direction. Does your interpretation of this correlation agree the answer for strength and direction that you found by reading the graph on page 1? Explain. 4. Using your calculator output from LinReg (ax+b), to get the coefficients for the regression line. a = slope = %3D b=y-intercept = %3D %3D 5. Write out the regression equation: 6. Using the regression equation, predict the selling price (in thousands of $) for a condo that has been on the market for 35 weeks. 7. Using the regression equation, predict the selling price (in thousands of $) for a condo that has been on the market for 10 weeks. 8. Using the regression equation, predict the selling price (in thousands of $) for a condo that has been on the market for 72 weeks.
Scatterplot
Weeks on Market Selling Price (in thousands of $)
18
125
48
73
51
61
33
76.5
56
53
9.
133
25
94
47
90
32
107
27
84
23
54
16
102
the relationship between weeks on the market and selling price. Don't forget to
Based on the graph, what is the....
Form:_Linear
Negative
Direction:
Strength: Moderate
Outlier(s): one
List (if any) or say "none"
Transcribed Image Text:Scatterplot Weeks on Market Selling Price (in thousands of $) 18 125 48 73 51 61 33 76.5 56 53 9. 133 25 94 47 90 32 107 27 84 23 54 16 102 the relationship between weeks on the market and selling price. Don't forget to Based on the graph, what is the.... Form:_Linear Negative Direction: Strength: Moderate Outlier(s): one List (if any) or say "none"
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