Sam makes some bread rolls. he gives 2/5 of the bread rolls to his neighbor and 4/9 of the remainder to his cousin. he has 15 bread rolls left. how many bread rolls does samick ?

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.

part a: 1.08

part b: 27.59