The mean absolute deviation (mad) for the first set of data is 1.2 and the mad for the second set of data is 0.4. approximately how many times the variability in the heights of the seventh graders is the variability in the heights of the sixth graders? (round all values to the tenths place.)
3.2
3.0
1.5
0.8

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below:

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step-by-step explanation:

i dont know

step-by-step explanation:

the reason i dont know is because i have not taken this class and for that reason i haven't learned this stuff

hope i could