The median of [5 4 4 4 3 3 2 2 1] is 3.

The pitch of sound is determined by its ________; the loudness of sound is determined by its ________

a. intensity; amplitude b. amplitude; frequency c. frequency; amplitude d. loudness; pitch

While trying to balance her checkbook, Deniece is able to ignore both the telephone ringing and her barking dog who wants to go outside. In this situation, Deniece is displaying her ability to

A) sustain her attention. B) inhibit her responses to irrelevant stimuli. C) selectively attend to stimuli. D) all of the above.