1. Which quantity is the independent variable? O average mid-career salary of graduates O annual tuition 2. According to this model, what is the average salary for a graduate of a college or university where the annual tuition is $30,000? S 3. What is the slope of this regression model?

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Pp# 11: can you help me solve and understand this practice problem please? A step by step explanation would be appreciated. Thank you!
Data on tuition and mid-career salary are collected from a number of universities and colleges. The result
of the data collection is the linear regression model
ŷ
0.83x + 166
where = annual tuition and y = average mid-career salary of graduates, both in thousands of dollars.
1. Which quantity is the independent variable?
O average mid-career salary of graduates
O annual tuition
2. According to this model, what is the average salary for a graduate of a college or university where
the annual tuition is $30,000?
3. What is the slope of this regression model?
Transcribed Image Text:Data on tuition and mid-career salary are collected from a number of universities and colleges. The result of the data collection is the linear regression model ŷ 0.83x + 166 where = annual tuition and y = average mid-career salary of graduates, both in thousands of dollars. 1. Which quantity is the independent variable? O average mid-career salary of graduates O annual tuition 2. According to this model, what is the average salary for a graduate of a college or university where the annual tuition is $30,000? 3. What is the slope of this regression model?
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