Gretchen is delivering boxes of cookies to her neighbors. her wagon itself weighs 12 pounds when empty and it will hold up to nine boxes. if each box of cookies weighs 1 pound what is the range of the total weight of her wagon while she is delivering cookies ?

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