The set of ordered pairs below represents the number of tickets sold for a fundraiser. The x-coordinates represent the day and the y-coordinates represent the number of tickets sold on that day. Draw a mapping diagram of the relation. Is the relation a function?

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score