Find the M. A.D.

.

The MAD is .8.

Step-by-step explanation:

MAD stands for Mean Absolute Deviation, which is the avg distance between each data value and the mean. Let's start by calculating the mean.

Mean = sum of values (ratings) / total number of values (frequency)

          = 1 + 3 + 3 + 4 + 4 / 1 + 2 +2

          = 3

Next let's calculate each of the distances (absolute value) from the mean, then take the average!

1 - 3 = 2 (absolute value)

3 - 3 = 0

3 - 3 = 0

4 - 3 = 1

4 - 3 = 1

Let's now take the average of the distances.

Mean = sum of distances / total number of values (frequency)

          = 2 + 0 + 0 + 1 + 1 / 1 + 2 + 2

          = .8

The MAD is .8.

answer:

the position of equilibrium will shift to the left.

step-by-step explanation:

the general equation for the dissociation of a weak base is

b + h₂o   ⇌   bh⁺ + oh⁻

according to le châtelier's principle, when a stress is applied to a system at equilibrium, the system will respond in a way that tends to relieve the stress.

if you apply a stress by adding more bh⁺ or oh⁻,   the system will respond by moving in a direction that gets rid of the added ions.

the position of equilibrium will shift to the left, forming more of the undissociated base.

207/8 is the right