There is a correlation of r = −.74 between the cost of bananas and new passenger car sales in the United States (Vigen, n.d.). Which of the following is an appropriate conclusion? 1 pointAn increase in the cost of bananas causes a decrease in new passenger car sales.There is a statistically significant relationship between the cost of bananas and new passenger car sales.As the cost of bananas decreases, new passenger car sales decrease.As the cost of bananas increases, new passenger car sales decrease.

a)A car dealership conducted a survey. It showed that a younger customer tended to purchase a lower priced car. What is likely true?There is no correlation between age and purchase price.There is a correlation between age and purchase price. There may or may not be causation. Further studies would have to be done to determine this.There is a correlation between age and purchase price. There is probably also causation. This is because there is a decrease in the purchase price with a decrease in age.(b)A doctor's office found that a lower outside temperature did not indicate a change in the number of appointments made. What can we determine from this information?There is no correlation between outside temperature and number of appointments made.There is a correlation between outside temperature and number of appointments made. However, there is no causation. This is because there is likely an increase in the number of appointments made with a decrease in the temperature outside.There is a correlation between outside temperature and number of appointments made. There may or may not be causation. Further studies would have to be done to determine this.(c)A piano instructor examined student progress. He noticed that when students spend less time playing video games, their memorization ability does not tend to change. What can he conclude?There is no correlation between amount of time spent playing video games and memorization ability.There is a correlation between amount of time spent playing video games and memorization ability. There is probably also causation. This is because there is an increase in memorization ability with a decrease in the amount of time spent playing video games.There is a correlation between amount of time spent playing video games and memorization ability. There may or may not be causation. Further studies would have to be done to determine this.

A correlation of r = 0.85 is found between weekly sales of firewood and cough drops over a 1-year period. Which of the following is a correct interpretation of this correlation value? There is a pretty strong positive linear relationship between sales of firewood and cough drops. Temperature is a possible lurking variable that is behind this relationship. Fire must be the cause of coughing.

A grocery store collected sales data. It found that a change in price does not imply that people will buy more or less milk. What can we determine from this information?There is no correlation between price and amount of milk bought.There is a correlation between price and amount of milk bought. However, there is no causation. This is because there is likely a decrease in the amount of milk bought with an increase in the price.There is a correlation between price and amount of milk bought. There may or may not be causation. Further studies would have to be done to determine this.

A dataset includes two variables for a city in the past 40 years: the number of high school graduates and the consumption of pizzas each year. You find that the two variables are positively correlated.Which of the following statement best describes such a correlation?i)High school graduates love eating pizzas.ii)If we increase the number of high school graduates, we would expect an increase in the pizza consumption.iii)As there might be an increase in the general population of the city, the number of high school graduates appears to be positively correlated with the pizza consumption. iv)Pizza stores should target high schools to increase their revenue. Question 8Answera.iiib.iic.i, ii and ivd.i and iie.None of the listed statements

Assertion (A) Sale of ice-cream increases during summer, shows positive correlation.Reason (R) When two variables move in same direction, it shows positive correlation.