Question
1) A catalytic converter is an exhaust emission control device that reduces toxic gases and pollutants in exhaust gas from an internal combustion engine into
1) A catalytic converter is an exhaust emission control device that reduces toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants though a chemical reaction. The catalyst for this reaction is often a mix of precious metals. Platinum is the most widely used metal in the production of catalytic converters. Which statement is most true?
The cost of catalytic converters depends on the price of platinum.
The price of platinum depends on the cost of catalytic converters.
The cost of catalytic converters does not depend on the price of platinum.
The cost of catalytic converters is random and unknowable.
2)
What is the below chart called? 6 Increase in Points on Exam w 2 7 Hours Studying for Exam 3 O A scatter diagram A bar chart O A pie chart O A histogramWhich answer applies to the relationship between X and Y? 0 Positive relation O Negative relation 0 Upper hemi-continuous O No relation For Obs. 3, from the z-scores for the X variable and Y variable, what can we tell? (Assume a population.) TABLE 1 Obs. X 12 17 7 LO WOO CI A VUI A COVOUAWNH 15 O The correlation coefficient is zero. O The X value is below its mean while the Y value is above its mean O The X value is above its mean while the Y value is below its mean O The X value is above its mean while the Y value is above its meanFor the scatterplot below, identify which correlation coefficient the plot represents. Yv. X 100 90 80 70 - 6 8 8 8 8 8 20 40 60 80 100 X O Near 1 O Near 0.5 O Near 0 O Near -1What is the mean of Y? TABLE 2 Obs. X Y SUx SUy SUx*SUy Predicted SUy Predicted Y Error Error 2 unawt Now autwNm Assume this is population data O 1.34 0 3.83 O 4.85 0 -7.33Step by Step Solution
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