Help finding th predictor variable

label Statistics
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A nurse is interested in whether there is a relationship between daily levels of stress and likelihood of a heart attack. The stress scores (predictor variable) and risk of heart attack values (criterion variable) from a small sample of participants are depicted below

Stress Score:3,2,7,8

Risk of Heart Attack:2,0,9,6

What is the standard deviation of the predictor variable?

May 27th, 2015


standard deviation is 2............................................................................................................answer

May 27th, 2015

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May 27th, 2015

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May 27th, 2015
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May 27th, 2015
Jun 23rd, 2017
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