# Look over the following equations and decide whether they are linear in the variables, linear in the

## Question:

Look over the following equations and decide whether they are linear in the variables, linear in the coefficients, both, or neither:

a. Y_{i} = β_{0} + β_{1}X^{3}_{i} + ε_{i}

b. Y_{i} = β_{0} + β_{1}ln X_{i} + ε_{i}

c. ln Y_{i} = β_{0} + β_{1}ln X_{i} + ε_{i}

d. Y_{i} = β_{0} + β_{1}X_{i}^{β2} + ε_{i}

e. Y_{i}^{β0} = β_{1} + β_{2}X^{2}_{i} + ε_{i}

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