(!giving branliest!) Help this is kinda confusing 37 POINTS

I'm confused on this could anyone me and show me what i need to do to solve it.

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

Sam is picking fruit from a basket that contains many different kinds of fruit. which set of events is independent?