A data set is made up of the values 6, 6, 7, 10, and 11. The table shows the distance between each value and the mean of 8. Data value Distance between value and mean 6 6 2 2 1 7 3 Sum of distances What is the mean absolute deviation (MAD) of the data set? A. 3
B. 8
C. 5
D. 2​

the answer is 8 b

Step-by-step explanation:

i got it right

The answer is D not B.

Step-by-step explanation:

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places