The provincial government reduced welfare rates and found that the jobless rate decreased over the following 18 months. They concluded that lowering welfar rates forced people to look for jobs. Further studies showed that during the 18- month period, the economy improved and thousands of jobs were created in the province, and no connection to welfare rates could be made. This is an example of al an accidental cause-and-effect relationship b) a presumed cause-and-effect relationship c) a reverse cause-and-effect relationship O d) a cause-and-effect relationship _. variables are ones that are not initially apparent, and affect the data for a short period of time. The process in which a statistical study is analysed by asking appropriate questions regarding sampling, measurement and sources, is called For the following data pair, x is the independent variable (cause) and y is the dependent variable (effect). Would the cause-and-effect relationship tend to be a positive linear relationship a negative linear relationship or no relationship? x = distance a house is from an elementary school, y = resale value of the house O al negative Obl positive O cl none