A Researcher Records the Number of Individual Instruments Identified by Students

question 2

Multiple Choice

A researcher records the number of individual instruments identified by students listening to a piece of classical music.He splits the data into quartiles and reports that students correctly identified 3 instruments at the 25th percentile,5 instruments at the 50th percentile,and 8 instruments at the 75th percentile.What are the IQR and SIQR for these data?

• A)the IQR is 3;the SIQR is 1.5
• B)the IQR is 2;the SIQR is 1.0
• C)the IQR is 5;the SIQR is 2.5
• D)There is not enough information to answer this question.

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Definitions:

Noisy Restaurant

A dining establishment with high levels of background noise, often impacting the dining experience and conversation.

Conversations

The informal exchange of ideas by spoken words between two or more people.

Sensory Memory

The shortest-term element of memory, which acts as a buffer for stimuli received through the senses, lasting up to several seconds.

Tone

In literature, the attitude of a writer toward the subject or audience; in music, a specific pitch or quality of sound.