Marta makes 90%, percent of the free throws she attempts. She is going to shoot 3 free throws. Assume that the results of free throws are independent from each other. Let X represent the number of free throws she makes. Find the probability that Marta makes at least 2 of the 3 free throws.

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