A family went out to eat. Below is the number of coen dogs tbat each of the four people ate. Find the mean absolute deviation (mad) of the data set.

1.25

Step-by-step explanation:

Give the data:

X : 1 1/2 ___ 0 4 2 1/2

Mean absolute deviation (MAD) :

Σ|x - xbar| ÷ n

xbar = Σx/ n

Σx = (1 1/2 + 0 + 4 + 2 1/2) = 8

xbar = 8/4 = 2

|x - xbar| :

|1 1/2 - 2|= 1/2

|0 - 2| = 2

|4 - 2| = 2

|2 1/2 - 2| = 1/2

Therefore,

MAD = (1/2 + 2 + 2 + 1/2) / n

MAD = 5/4

MAD = 1.25

the 2 figures are congruent bc if you reflect abcd over the y axis then over the d axis the figures overlap