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Use the given data to complete parts (a) and (b) below. X 2.2 4 3.9 1.3 3 4.7 5 (a) Draw a scatter diagram of the data. Choose the correct answer below. O A. O B. O C. OD. 6- 6-7 4- 4- 6(b) Draw a scatter diagram of the data with the additional data point (10.3,9.2). Choose the correct answer below. O A. O B. O c. O D. 12- 12 - 12- 127 4- X 12 12 Compute the linear correlation coefficient with the additional data point. The linear correlation coefficient for the five pieces of data is. (Round to three decimal places as needed.) Comment on the effect the additional data point has on the linear correlation coefficient. O A. The additional data point weakens the appearance of a linear association between the data points. O B. The additional data point strengthens the appearance of a linear association between the data points. O C. The additional data point does not affect the linear correlation coefficient.Explain why correlations should always be reported with scatter diagrams. O A. The scatter diagram is needed to determine if the correlation is positive or negative. 0 B. The scatter diagram is needed to see ifthe correlation coefficient is being affected by the presence of outliers. O c. The scatter diagram can be used to distinguish between association and causation, Will the following variables have positive correlation. negative correlation. or no correlation? interest rates on car loans and number of cars sold Will these variables have positive correlation, negative correlation, or no correlation? 0 Positive 0 Negative 0 Nooorrelation The linear correlation between violent crime rate and percentage of the population that has a cell phone is - 0.918 for years since 1995. Do you believe that increasing the percentage of the population that has a cell phone will decrease the violent crime rate? What might be a lurking variable between percenmge of the population with a cell phone and violent crime rate? Will increasing the percentage of the population that has a cell phone decrease the violent crime rate? Choose the best option below. 0 No 0 Yes What might be a lurking variable between percentage of the population with a cell phone and violent crime rate? Q A. the economy 0 B. overall cell phone signal strength 0 C. the police 0 D. the average oell phone's effectiveness as a weapon