4. How could the relationship of the data be classified? A fairly strong positive correlationA fairly weak positive correlationA fairly strong negative correlationA fairly weak negative correlation6. You suspect that the spiciness of food served in a restaurant is positively correlated with number of soft drinks ordered. You have gathered several observations of people ordering food of different spice-levels and the number of soft drinks they ordered. What would be your next steps to test your hypothesis? a Plot all data together on a dot plot to assess if there is any visible correlation between the data setsb Offer a conclusion based on the data you observed.c Pick two points on the dot plot and find a line of best fit.d Find the correlation coefficient to see how well the line of best fit actually fits the data.7. The correlation coefficient for practicing violin and getting better grades in a group of people is 0.8. Analyze the following statement:Playing violin causes students to get better grades.Is this a reasonable conclusion? aYes; students who play violin must necessarily get better gradesbYes; the correlation coefficient is above 0.5, so that implies causationc No; playing violin and earning better grades are completely unrelateddNo; even though there is a strong positive correlation, playing violin doesn’t cause students to get better grades8. Analyze the following statement:.Brandon puts his water in the refrigerator so it will stay cold.Is the statement an example of correlation or causation?Correlation, because there aren’t enough observable trialsCausation, because a refrigerator keeps things coldNo relationship, because water temperature is independent of whether or not it is in a refrigeratorThere is not enough information to make a conclusion
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