Please Help! The diagram compares the ratio of girls in the chorus.
What is the ratio of girls to boys? If there are 20 students in the chorus, how many are girls and how many are boys.

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