A Sample Consists of Four Observations,scored as 1,3,5,7

question 17

Multiple Choice

A sample consists of four observations,scored as 1,3,5,7.What is the standard deviation?

• A)2.55
• B)2.58
• C)3.02
• D)3.99

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Definitions:

Night Terrors

A sleep disorder causing feelings of panic or dread typically occurring during the first hours of stage 3-4 non-REM sleep.

Conscious Awareness

Being cognizant of and capable of reflecting on one’s own being, perceptions, thoughts, environment, and life occurrences.

Cocktail Party Effect

The ability to focus one's auditory attention on a particular stimulus while filtering out a range of other stimuli, as at a noisy gathering.

Change Blindness

An inability or failure to notice large changes in one's environment or in a visual stimulus when the change occurs simultaneously with a visual disruption.