A jar contains 30 red marbles, 50 blue marbles, and 20 white marbles. You pick one at random. Find the given probabilities:

Type a full reduced fraction. Ex. 1/4
P(red)=
P(blue)=
P(not white)=

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