For the Following Regression Equation $\tilde { y } = 15 + 6 x _ { 1 } + 5 x _ { 2 } + 4 x _ { 1 } x _ { 2 }$

question 131

Multiple Choice

For the following regression equation $\tilde { y } = 15 + 6 x _ { 1 } + 5 x _ { 2 } + 4 x _ { 1 } x _ { 2 }$ ,a unit increase in x₁ increases the value of y on average by:

• A) 5
• B) 30
• C) 26
• D) an amount that depends on the value of x₂

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