Week 7 Knowledge Check Homework Practice Questions
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Part 1 of 9 - Linear Regression and Correlation 2.0/ 2.0 Points
Question 1 of 20
Which of the following equations are linear?
A. 8x3+4y2
...
Week 7 Knowledge Check Homework Practice Questions
Return to Assessment List
Part 1 of 9 - Linear Regression and Correlation 2.0/ 2.0 Points
Question 1 of 20
Which of the following equations are linear?
A. 8x3+4y2
B. y=6x+8
C. 3y=6x+5y2
D. y-x=8x2
Answer Key: B
Feedback:
A linear equation is a linear line. If a problem has a squared or a cubed term, it isn't linear. It is a quadratic
equation.
Question 2 of 20
A vacation resort rents SCUBA equipment to certified divers. The resort charges an up-front fee of
$25 and another fee of $12.50 an hour. What is the dependent variable?
A. time
B. resort location
C. diver certification
MATH302 B007 Win 20 Tests & Quizzes
Tests & Quizzes
2/23/2020 APUS CLE : MATH302 B007 Win 20 : Tests & Quizzes
https://edge.apus.edu/portal/site/422035/tool/34abd8b5-c97c-7121-4d4a-439bef8595aa/jsf/select/selectIndex 2/24
1.0/ 1.0 Points
D. fee amount
Answer Key: D
Feedback:
The equation is
Dollars = $12.5(hour) + $25
Dollars depends on how many hours you use the equipment for.
Dollars is the dependent variable and time (in hours) is the independent variable.
Part 2 of 9 - Multiple Linear Regression 4.0/ 4.0 Points
Question 3 of 20
You move out into the country and you notice every Spring there are more and more Deer Fawns that
appear. You decide to try and predict how many Fawns there will be for the up coming Spring.
You collect data to, to help estimate Fawn Count for the upcoming Spring season. You collect data on over the past
10 years.
x1 = Adult Deer Count
x2 = Annual Rain in Inches
x3 = Winter Severity
Where Winter Severity Index:
1 = Warm
2 = Mild
3 = Cold
4 = Freeze
5 = Severe
Approximately what percentage of the variation for Fawn Count is accounted for by these 3 variables in this model?
See Attached Excel for Data.
Deer data.xlsx 10 KB
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