A certain airplane offers two types of seats, first class and economy. There are 209 total seats on the airplane. If the difference between the
number of economy and first class seats is 153, find the number of
economy seats.

56

Step-by-step explanation:

you do 209-153=56

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.

7.3

step-by-step explanation: