A correlation coefficient should be used when the independent and dependent variable are measured as categorical nominal ordinal continuous
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A
categorical
nominal
ordinal
continuous
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- The correlation coefficient betweem anxiaty and exam scorea of the students is -0.6 .so what is the percentage of the change in exam scores explained by anxiaty?Define the term relationship as a perfect positive cross-correlation?A strong positive correlation can be shown between the amount of damage caused by a fire and the number of firefighters on the scene. Does this mean that the amount of damage is caused by the number of firefighters? Explain.
- A correlation of zero between two quantitative variables means thatUse the following to answer the question: y^=-4.2x+9.5 with R2=9%. Which best describes the correlation? Weak negative linear relationship Moderate negative linear relationship Weak positive linear relationship No linear relationship Moderate positive linear relationshipA study is conducted involving 17 infants to investigate the association between gestational age at birth, measured in weeks, and birth weight, measured in grams. By the used of the table what is the coefficient relationship between the gestational age at birth and birth weight of the infants? Please make a Decision and Conclusion, refer to the image below for interpretation.
- The correlation should be around zero if the scatter plot reveals a set of data points that form a circular pattern. True or false?Expression levels of GeneA and GeneB were measured in 10 cell lines. The researcher would like to know if expression levels of GeneA and GeneB are related. Use a parametric method to test if GeneA and GeneB are correlated.Differentiate Regrassion analysis and Correlational analysis?
