A nurse is interested in whether there is a relationship between daily levels of stressand likelihood of a heart attack. The stress scores (predictor variable) and risk ofheart attack values (criterion variable) from a small sample of participants aredepicted below(Values below are valid for this question only!)Stress Score Risk of Heart Attack(Higher values = more stress) (Higher values = greater risk)0 75 75 90 3What is the covariance?
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Question 2A nurse is interested in whether there is a relationship between daily levels of stressand likelihood of a heart attack. The stress scores (predictor variable) and risk ofheart attack values (criterion variable) from a small sample of participants aredepicted below(Values below are valid for this question only!)Stress Score Risk of Heart Attack(Higher values = more stress) (Higher values = greater risk)2 89 81 87 9What is the standard deviation of the predictor variable?
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