4.8.2+3.2 plz explain using pemdas i need it very fast write/type out the order of operations
write/type the final answer in a complete sentence
write/type 1-2 detailed sentences including the steps you used in order to solve.

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