Consider the Following Frequency Distribution What Is the Cumulative Frequency of the Second Class Interval

question 57

Multiple Choice

Consider the following frequency distribution: $$\begin{array} { l c } \text { Class Interval } & \text { Frequency } \\100 \text {-under } 200 & 25 \\200 \text {-under } 300 & 45 \\300 \text {-under } 400 & 30\end{array}$$
What is the cumulative frequency of the second class interval?

• A)25
• B)45
• C)70
• D)100
• E)250

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Definitions:

Interval Recording

A behavior recording technique that measures the occurrence or nonoccurrence of behavior within specified time intervals. The total observation time is divided into equal intervals, and the observer records whether the behavior occurs during those intervals.

Frequency Recording

A method of data collection in behavioral analysis that involves counting the number of times a specific behavior occurs within a set period.

Latency Recording

A variation of duration recording in which an observer records how long it takes a student to begin engaging in a behavior after the teacher instructs the student to perform it.

Interval Recording

A data collection method where the observation period is divided into intervals, and the presence or absence of behavior is recorded in each interval.