The Following Contingency Table Provides a Joint Frequency Distribution for a Group

question 12

Multiple Choice

The following contingency table provides a joint frequency distribution for a group of retired people by career and age at retirement. Age at Retirement $$\begin{array} { | c | c | c | c | c | c | } \hline \text { Career } & 50 - 55 & 56 - 60 & 61 - 65 & \text { Over 65 } & \text { Total } \\\hline \text { Attorney } & 10 & 34 & 79 & 42 & 165 \\\hline \begin{array} { c } \text { College } \\\text { Professor }\end{array} & 10 & 50 & 81 & 41 & 182 \\\hline \text { Secretary } & 21 & 45 & 63 & 49 & 178 \\\hline \text { Store Clerk } & 18 & 44 & 70 & 50 & 182 \\\hline \text { Total } & 59 & 173 & 293 & 182 & 707 \\\hline\end{array}$$ Find the probability that the person was an attorney and retired before the age of 61.

• A)0.190
• B)0.267
• C)0.048
• D)0.062
• E)0.499

---

Definitions:

Indifferent Toward Mothers

A behavioral observation in attachment theory where infants or young children show no preference between their mothers and complete strangers.

Preoperational Stage

The second stage in Piaget's theory of cognitive development, occurring roughly between the ages of 2 and 7, characterized by symbolic thinking and egocentrism but a lack of operational thought.

Sensorimotor

Refers to the first stage in Piaget's theory of cognitive development, characterized by infants learning through physical interaction with their environment.

Concrete Operational

A stage in Piaget’s theory of cognitive development where children are able to think logically about concrete events.