Suppose we estimate the following model for final exam grades as a function of the number of classes missed Grades 1 2 missed u t Use the data given below Grades 92 81 72 89 Missed 1 4 5 2 The estimated regression equation is Grades 97 2 4 4missed Find the total sample variation and explained variation in dependent variable Calculate and interpret R 2

Question: Suppose we estimate the following model for final exam grades as a function of the number of classes missed. Grades = 1 +

Suppose we estimate the following model for final exam grades as a function of the number of classes missed.

Grades = β₁ + β₂missed + u_t

Use the data given below

Grades

Missed

The estimated regression equation is

Grades = 97.2 − 4.4missed

Find the total sample variation and explained variation in dependent variable. Calculate
and interpret R²

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