State whether each question below represents a proportional relationship. how can you tell? a. y= x+ 2.3 b. y=6\13x c. 7-y=2x

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.

it would open into a square depending on the type of envelope i’m not sure about the second part