For the data set 62, 73, 74, 75, 76, the mean is 72. What is the mean absolute deviation? A. The mean absolute deviation is 4
B. The mean absolute deviation is 20
C. The mean absolute deviation is 5
D. The mean absolute deviation is 72
plz help i need to know asap

A

Step-by-step explanation:

The answer is A. The mean absolute deviation is 4

Step-by-step explanation:

I TOOK the test believe me!

 A. The mean absolute deviation is 4

Step-by-step explanation:

Mean absolute deviation (MAD) is found by finding the absolute value of difference between each number in set and mean, adding them together, then dividing by total numbers in set.

Differences

72-62= 10

72-73= 1

72-74= 2

72-75= -3

72-76= -4

add the absolute values...

10+1+2+3+4=20

divide by 5 because that is how many numbers in set...

20/5=4

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.