TABLE 2- 5
the Following Are the Durations in Minutes

question 22

Multiple Choice

TABLE 2- 5
The following are the durations in minutes of a sample of long-distance phone calls made within the continental United States reported by one long-distance carrier.
$$\begin{array}{l}\begin{array} { l l } \hline&\text { Relative} \\\text {Time (in Minutes) }&\text {Frequency }\\\hline0 \text { but lessthan } 5 & 0.37 \\5 \text { but less than } 10 & 0.22 \\\text { 10 but lessthan } 15 & 0.15 \\\text { 15 but less than } 20 & 0.10 \\\text { 20 but lessthan } 25 & 0.07 \\\text { 25 but lessthan } 30 & 0.07 \\30 \text { or more } & 0.02 \\\hline\end{array}\end{array}$$
-Referring to Table 2-5, what is the cumulative relative frequency for the percentage of calls that lasted 10 minutes or more?

• A) 0.16
• B) 0.90
• C) 0.24
• D) 0.41

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Definitions:

Objectivity

Objectivity in research or reporting refers to the avoidance of bias, ensuring that conclusions drawn are based solely on factual evidence and observable phenomena.

Scientific Observation

The process of gathering data through the senses or with the help of scientific instruments as part of the empirical research.

Participant Observation

A qualitative research method where the researcher immerses themselves in the study environment, observing and participating in the group's activities.

Naturalistic Observation

Naturalistic observation is a research method in which subjects are observed in their natural environment without any intervention by the researcher.