Which step is not necessary when solving this system of equations by graphing? Identify the point of intersection. Choose a method to graph the equations. Determine the shaded area for each line. Write the solution as an ordered pair.

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.

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the answer is:

mean: 6

mad: 2.14

2y+y=5

add 2y and y