Does having various types of children affect the probability of going to the zoo? Here is a logistic regression equation:
Dependent Variable: Visited Zoo in Past Year? (Yes=1, No=0)
$\begin{array}{ll}
\text { Independent Variable } & \text { Slope } \
\text { \# of children less than } 6 \text { years old } & .49^{*} \
\text { \# of children } 6 \text { through } 12 \text { years old } & .37^{*} \
\text { \# of children } 13 \text { through } 17 \text { years old } & -.35^{*} \
\text { Constant } & -.02
\end{array}$ Who is most likely to go to the zoo?
A) Someone with four-year-old triplets
B) Someone with nine-year-old triplets
C) Someone with fifteen-year-old triplets
D) Someone with a four-year-old, a nine-year-old, and a fifteen-year-old

Question

Quizplus · Accepted Answer

The slopes indicate the change in the log odds of visiting the zoo for each additional child in the specified age group. Positive slopes (.49 for children <6 years old and .37 for children 6-12 years old) increase the probability of visiting the zoo, while a negative slope (-.35 for children 13-17 years old) decreases it. Therefore, someone with four-year-old triplets (A) is most likely to go to the zoo, as each additional child under 6 increases the likelihood the most according to the slope values.

Does Having Various Types of Children Affect the Probability of Going