Instruction 2 -Referring to Instruction 2

question 147

Multiple Choice

Instruction 2.4
The following are the durations in minutes of a sample of long-distance phone calls made within Australia reported by one long-distance carrier.
$$\begin{array} { | l | l | } \hline \text { Time (in Minutes) } & \text { Relative Frequency } \\\hline0 \text { but less than 5 } & 0.37 \\\hline 5 \text { but less than 10 } & 0.22 \\\hline \begin{array} { l } 10 \text { but less than } \\15\end{array} & 0.15 \\\hline \begin{array} { l } 15 \text { but less than } \\20\end{array} & 0.10 \\\hline \begin{array} { l } 20 \text { but less than } \\25\end{array} & 0.07 \\\hline \begin{array} { l } 25 \text { but less than } \\30\end{array} & 0.07 \\\hline 30 \text { or more } & 0.02 \\\hline\end{array}$$
-Referring to Instruction 2.4,what is the cumulative relative frequency for the percentage of calls that lasted under 20 minutes?

• A) 0.59
• B) 0.10
• C) 0.84
• D) 0.76

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Definitions:

Situational Attributions

Explanations for behaviour based on an actor’s external situation or environment.

Self-serving Bias

The common human tendency to attribute successes to internal factors (like ability or effort) and failures to external factors (like luck or bias).

Dispositional

Refers to inherent personality traits and tendencies that influence behavior and attitudes.

Situational

Depending on or relating to a specific set of circumstances or context, often implying that different situations require different responses or actions.